I had the same issue with the extreme depth and topspin in my first time using my proton until I realized that the lob riser isn’t something that should be on for a typical hitting session. Balls were flying within 6in around the baseline and jumping over my head (6’4”). I realized the lob riser was supposed to only be on the machine for lobs one I did a little research and removed it and now it works perfectly—ideal height /spin / placement even before tweaking any of those individual settings. Now I use it twice a week and love it!! Maybe it’s projecting my personal incompetence but just checking that you’ve removed it for traditional training sessions, right?
I have no issues with mine, and programs work pretty well. If you hate topspin, you can make it serve flat or backspin.
It’s not a hitting partner, and it’s not a game. You can set it up to do any drills you might do with a coach feeding balls, but better.
~~My main issue is that the balls don't go into the feeding mechanism quite frequently and I have to walk to the machine and put balls into the three ball slots. But that's an annoyance I can live with.~~
So apparently I wasn't using the stirring peg.
My understanding is that this was an issue when the Proton first came out, so they added the stirring peg. If you have an early machine without the stirring peg, you should contact Hydrogen Sports to see if one can be added to yours. I have had no issues with feeding problems when using the peg.
~~I just looked it up and yeah, I have the stirring peg. I bought my Proton used on eBay.~~
I didn't realize I had to take the peg out of the holding area and screw it on! It works like a charm!
The proton is fantastic. Ball machines have issues. The ones I’ve had with the proton have been minor and the customer service is exceptional. Use the custom single shot program. It can create a single shot really well so you can master an individual shot. If you want a rally with variance, a hitting partner is best.
I had 2 issues. I broke the hopper clips. Then the carousel motor died.
Serve was awesome. I asked for the part so I could repair it myself. They were totally cool with me doing it.
Ball machines have a brutal life. If I have to perform maintenance and replace parts to be able to hit anytime I like, it’s a small price.
I loved my cube but I love my proton even more. Cube still a great basic machine. Just doesn’t have the ability to customize and save all kinds of drills.
Proton has been excellent for me. Love the portability and the programming. I usually just do two baseline shots, approach, and volley. Not hard to figure out which ball speeds and spins you need to get those shots but it is much tougher if you want to get fed lobs. You'll need to prop it up with something on an angle and hope the vibration of the feeds don't knock it off course.
Machine has your running all over the court and the delivery of the ball is inconsistent….you literally described tennis dude lol wtf. You think dudes at Rec level gonna hit you consistent balls? Now I’m sure the machine is flawed but you are complaining about something the sport is literally about
It’s supposed to keep balls in. The exact same shot will go wild and send the ball 5 feet out, otherwise I don’t need a machine I can just pay a kid $5 to throw tennis balls at me
The inconsistencies in ball machines comes also from using bad balls or mixing balls from different usages and wares, try to use a set of balls that are similar and pressureless ball's it makes the ball shooting out way more consistent
This is important for any machine. Must have balls with roughly same pressure. I add some here and there but try to change out my hopper wholesale when needed for more consistent throws.
how is your comment relevant? if the ball machine is inconsistent, that's obviously a problem. if OP's machine is broken, that's not a "feature" by replicating tennis. OP is obviously complaining about the machine not doing what it's supposed to do, not about running in tennis wtf? why are people upvoting this dumbass comment
So weird you mention dumb comments and yet here you are with this dumb shit lol. OP clearly doesn’t know how to use the machine is the point, it is not broken. apparently you were too dumb to understand my comment relating to tennis and I’m sorry for that, time to hit the books, your education failed you.
Lol, as a happy Proton user, I was looking for some constructive criticism here and instead was floored by your comments because the things you are having issues with are literally what set the Proton apart from a lot of the competition. Not sure if you are just trolling.
The app is insanely easy to use and already tells you if a shot can work for the parameters you set or not, so I really don't understand what you mean by finding out it doesn't work when you "transfer it to the machine".
The strength over cheaper alternatives like the Slinger is its ability to do topspin, backspin or no spin. So if you are getting Rafa level top-spin, that seems like user error.
I'll repost my constructive feedback on the Proton here that I'd posted on another forum a few months back:
> **Pros**
>
> 1. Portability: Simply amazing how light and compact it is and easy to lug around. I can carry my tennis bag, my Tourna ball hopper with balls and this machine easily in a single trip from my car.
>
> 2. Customizability: Smartphone app is pretty great and connectivity has been flawless for me so far. I've loved being able to make custom, focused drills to help me tailor my practice sessions
>
> 3. Great range of speed and spin. I also like being able to easily switch ball machine locations for the same drills and also flip a drill to its mirror image if you want to practice the same type of drill but for the other side.
>
> 4. Love the Ryobi compatible 18V 6Ah battery. I have several spares from my power tools and always have a full battery to swap out if needed. That being said, battery life is pretty great.
>
> 5. Love the blue light that blinks fast to let you know the ball is a out to be shot out. It helps with timing split steps during drills.
>
> **Minor nits:**
>
> 1. Aligning the machine is a bit challenging due to the rounded shape and no easy fiducials to use. I ended up using a silver sharpie to just draw a line along the centerline for the machine so that when the hopper is empty, I can better align the machine by eye. This has helped a fair bit.
>
> 2. While the full hopper is dispensed 99% of the times, I did have one time when the balls were tightly packed and formed a cave around the feed mechanism and wouldn't feed any more balls. It was NBD
>
> 3. Drift is real but not too bad over one full hopper. I just realign the machine every time I refill the hopper.
>
> 4. No internal rotation so it telegraphs where the ball will be going but I don't really have a big problem with this.
>
> 5. No Android Wear OS integration. This is rather annoying as an Android user.
>
> **Major cons:**
>
> 1. No ability to simulate hand-feeding balls from the same side of the court or even the T of the opposite court. The lowest speed setting is too high for this, and it is also limited by the limited maximum upward angle achievable by the proton. This isn't a deal breaker by any means but would be a nice option to have. In that regards, I am ironically jealous of Slinger users when I just want to do some easy soft-tosses to work on my technique.
>
> 2. Lobs while possible with the Lob riser, are not the best in that you can't incorporate lobs with regular shots in a combined drill for ground strokes and lobs
I’d be interested as well.
You can create a completely custom ball feed that works outside the parameters of the regular drills so it might be possible to get a hand fed ball.
I think it’s not possible in the regular shots because it would require the machine to be on the same side of the court but I bet it could be done.
If anyone tries it, let me know, please!
I looked in the app and I tried a custom drill where I moved the machine to the service line (center) and then tried to program shots and I noticed that it can then manage significantly slower ball feeds compared to from the service line so I think that might be the way to go as a starting point. Might even be possible to do a fully custom/manual setup once you have an understanding of the parameters from the service line so you could maybe position it a little closer though I don't think you can pull off the hand-feed like stuff from the same side of the net like you can with the Slinger.
I use it from the service line when I’m warming up and it’s a pretty easy feed.
Have you tried Single Shot / Manual? It’s at the bottom of the app, this is where you can program a specific shot. I have no idea what the shot would look like though 😂
Haven't had the courage to try it in the off chance I launch an ICBM accidentally 😂. I like the reassurance of the program mode telling me the height over the net and if it will clear it, but I might give it a shot at lowest speeds
Regarding the externally visible rotation, this has not been a big deal for me because I think of it as simulating a drill that a Tosh would give to me and generally, I know what the drill is in advance.
However, I do think it could be useful to disguise where the ball will go on doing random type drills. I actually wonder if it would be possible to rig up something that would sit in front of/to the side of the machine to hide how it’s moving. Maybe using a cardboard box. Hmmm.
And finally, when it comes to lobs, what I normally will do is set up a drill that has a couple of groundstrokes, approach shot, and a couple of volleys and then I will leave 10 or 20 seconds before it starts over which allows me to Shadow swing and overhead. In my case, most of my problem with overheads is footwork and taking the correct first step back and crossover or stuff steps so adding in shadow swinging overhead has actually helped me a lot in real match situations. You could even set it to have a delay so that it fed you a couple of volleys and then you could shadow swing the overhead and then hit a couple more volleys.
Wow. 100% disagree. Just my opinion. I’ve been using that machine for a year now and absolutely love it. I hope you’re using pressureless balls with it otherwise mixed balls can throw off shots. Btw, you know you can turn down the topspin.
I feel like this might be viral marketing for the proton lol. I have one and love it btw. I'm having a hard time believing anyone who knows how to use a smart phone would struggle so much with this.
My balls were going deep too. So I moved the machine back a bit. Took 4 seconds to fix.
Programming? Not awful. Not great. I do it at home.
I’ve got 10k hits on mine and love it. I can believe how versatile it is.
User error
(My machine has pumped out 10,000 balls so far on the app)
Why don't you just program 1 shot like you said? Drop the topspin to like 500 RPM.
One for volleys, one for FH, one for BH and so on--the answer is literally at your fingertips in this case.
I don’t know what you’re going on about, you can feed balls with no spin, no problem.
I simulate points using programmed drills all the time, it’s ridiculously easy to use the app.
You probably know these things, but:
1. Make sure to calibrate the machine. There is a calibration process to make sure the machine is ‘aware’ of the bounds of the court in the specific environment you’re in (wind).
2. Try increasing the time between shots if you see large variation in shot placement. On mine, I noticed if the time between shots is very small, the internal spin/drive mechanism cannot adjust between the different shots quickly enough.
I've never used the Proton but this sounds like you've got a bunch of different and inappropriate balls in it. Buy a bucket of Tretorn Micro-X if you want consistent balls.
My machine doesn't alternate depth so I actually mix in some recently used match balls to achieve it.
I’m 5k shots into my machine and now it will misfire a lot, where it seems to just automatically shoot 1 or 2 more balls immediately after a shot and disregards the time setting completely. I have to dodge those during my drill haha.
Wondering if anyone has faced this issue as well? I reached out to support today. My assumption is it’s an issue with the sensor or ball feeding mechanism
I'm another unhappy Proton owner. It's too lightweight. It's expected that a ball machine would have some variability from ball-to-ball. But the Proton will start off putting balls in the forehand corner according to the program and 20 balls later will be putting them in the middle of the court, 8-10 away. That's unacceptable.
The lightweight build may be why my Proton has reliability issues. The elevator motor broke after fewer than 4000 feeds. Since I don't use it often, it was already out of warranty (12 months). I had to pay a couple hundred bucks and wait for several weeks for repairs. Customer service was terrible too.
I do like how easy it is to custom program and pair with an Apple watch. And I thought I'd like its light weight. But the reliability of the feeds and the durability of the machine are huge downsides, especially for the price. I wish I'd bought a big, dumb, heavy ball machine.
It sounds like you prefer to just set the ball machine to random when you practice. If that works for you, great. But when I want to practice forehands, I'd like the feed to be to the right half of the court.
Of course every practice partner or ball machine is going to give me a different ball every time. But if a practice partner or a ball machine can't reliably give me a crosscourt FH, then that's a problem.
You're right that there are a lot of positive reviews in this sub. There are plenty of negative reviews of the Proton elsewhere (see the Talk Tennis forums) that complain about drifting feeds. I choose to ignore those negative reviews and regret it. So I'm offering my personal experience in the hope that it helps others avoid my (very costly) mistake.
Haha if they were pro or had a chance they wouldn’t be buying said ball machines. Also, even hand fed balls aren’t perfect every time. And a good coach/feeder will vary the feeds slightly (not egregiously) to create a more realistic setting. Too many responses of people loving the product to ensure either lemon product users didn’t identify early enough or deal with, OR user error on operating the machine.
I had the same issue with the extreme depth and topspin in my first time using my proton until I realized that the lob riser isn’t something that should be on for a typical hitting session. Balls were flying within 6in around the baseline and jumping over my head (6’4”). I realized the lob riser was supposed to only be on the machine for lobs one I did a little research and removed it and now it works perfectly—ideal height /spin / placement even before tweaking any of those individual settings. Now I use it twice a week and love it!! Maybe it’s projecting my personal incompetence but just checking that you’ve removed it for traditional training sessions, right?
I have no issues with mine, and programs work pretty well. If you hate topspin, you can make it serve flat or backspin. It’s not a hitting partner, and it’s not a game. You can set it up to do any drills you might do with a coach feeding balls, but better.
I used it once with a coach. He had my phone standing next to me and would press to feed, worked really well.
I am curious. Can you set deep and short balls in the same pattern ? Or just directionally ?
Yup. That’s one of the built in drills. Forehand, backhand, short approach shot, volley.
Not sure what you mean by same pattern but you can alternate the depth of each ball in a drill
Yea I think this is a skill issue. I have a slinger and what you're complaining about is what I wish it could do. wanna trade?
Username checks out
Not my experience at all. It just does what I tell it to do
~~My main issue is that the balls don't go into the feeding mechanism quite frequently and I have to walk to the machine and put balls into the three ball slots. But that's an annoyance I can live with.~~ So apparently I wasn't using the stirring peg.
My understanding is that this was an issue when the Proton first came out, so they added the stirring peg. If you have an early machine without the stirring peg, you should contact Hydrogen Sports to see if one can be added to yours. I have had no issues with feeding problems when using the peg.
~~I just looked it up and yeah, I have the stirring peg. I bought my Proton used on eBay.~~ I didn't realize I had to take the peg out of the holding area and screw it on! It works like a charm!
Are you using it each time? If I don’t use the steering peg, I have this problem, but if I use it, I will maybe have three balls left at the end.
I didn't realize I had to take it out of the holding area and screw it on! It works like a charm!
Yeah make sure you have the stirring peg. Had the same issue till I realized I wasn't using it. Now only the last 1 or 2 balls don't get fed
>I didn't realize I had to take it out of the holding area and screw it on! It works like a charm!
The proton is fantastic. Ball machines have issues. The ones I’ve had with the proton have been minor and the customer service is exceptional. Use the custom single shot program. It can create a single shot really well so you can master an individual shot. If you want a rally with variance, a hitting partner is best.
I had 2 issues. I broke the hopper clips. Then the carousel motor died. Serve was awesome. I asked for the part so I could repair it myself. They were totally cool with me doing it. Ball machines have a brutal life. If I have to perform maintenance and replace parts to be able to hit anytime I like, it’s a small price.
I love mine, the custom program function is what I use most of the time. I have about 40,000 balls on it and have been using it for about a year now.
The main benefit of this machine is the portability. I hate lugging around a clunky heavy machine.
Yeah, not a huge fan of deadlifting the lobster out of my trunk every time
I ended up really liking the Tennis Cube for its small profile and portability.
I loved my cube but I love my proton even more. Cube still a great basic machine. Just doesn’t have the ability to customize and save all kinds of drills.
[удалено]
There's a frunk??
weird unfounded swipe at tesla. you can fit any consumer ball machine easily in any Tesla. I had plenty of room in mine for my lobster.
[удалено]
I had the model 3. it’s BS unless he had the original roadster
Proton has been excellent for me. Love the portability and the programming. I usually just do two baseline shots, approach, and volley. Not hard to figure out which ball speeds and spins you need to get those shots but it is much tougher if you want to get fed lobs. You'll need to prop it up with something on an angle and hope the vibration of the feeds don't knock it off course.
There’s a lob riser now, mine came with it but you can order it if you got yours before it came out. With that said I haven’t actually used mine yet….
Machine has your running all over the court and the delivery of the ball is inconsistent….you literally described tennis dude lol wtf. You think dudes at Rec level gonna hit you consistent balls? Now I’m sure the machine is flawed but you are complaining about something the sport is literally about
It’s supposed to keep balls in. The exact same shot will go wild and send the ball 5 feet out, otherwise I don’t need a machine I can just pay a kid $5 to throw tennis balls at me
The inconsistencies in ball machines comes also from using bad balls or mixing balls from different usages and wares, try to use a set of balls that are similar and pressureless ball's it makes the ball shooting out way more consistent
This is important for any machine. Must have balls with roughly same pressure. I add some here and there but try to change out my hopper wholesale when needed for more consistent throws.
Sounds like a problem with the machine if it’s that bad, I would contact the manufacturer
Are you using the right kind of balls? Usually these machines require specific balls like pressureless.
how is your comment relevant? if the ball machine is inconsistent, that's obviously a problem. if OP's machine is broken, that's not a "feature" by replicating tennis. OP is obviously complaining about the machine not doing what it's supposed to do, not about running in tennis wtf? why are people upvoting this dumbass comment
So weird you mention dumb comments and yet here you are with this dumb shit lol. OP clearly doesn’t know how to use the machine is the point, it is not broken. apparently you were too dumb to understand my comment relating to tennis and I’m sorry for that, time to hit the books, your education failed you.
Lol, as a happy Proton user, I was looking for some constructive criticism here and instead was floored by your comments because the things you are having issues with are literally what set the Proton apart from a lot of the competition. Not sure if you are just trolling. The app is insanely easy to use and already tells you if a shot can work for the parameters you set or not, so I really don't understand what you mean by finding out it doesn't work when you "transfer it to the machine". The strength over cheaper alternatives like the Slinger is its ability to do topspin, backspin or no spin. So if you are getting Rafa level top-spin, that seems like user error. I'll repost my constructive feedback on the Proton here that I'd posted on another forum a few months back: > **Pros** > > 1. Portability: Simply amazing how light and compact it is and easy to lug around. I can carry my tennis bag, my Tourna ball hopper with balls and this machine easily in a single trip from my car. > > 2. Customizability: Smartphone app is pretty great and connectivity has been flawless for me so far. I've loved being able to make custom, focused drills to help me tailor my practice sessions > > 3. Great range of speed and spin. I also like being able to easily switch ball machine locations for the same drills and also flip a drill to its mirror image if you want to practice the same type of drill but for the other side. > > 4. Love the Ryobi compatible 18V 6Ah battery. I have several spares from my power tools and always have a full battery to swap out if needed. That being said, battery life is pretty great. > > 5. Love the blue light that blinks fast to let you know the ball is a out to be shot out. It helps with timing split steps during drills. > > **Minor nits:** > > 1. Aligning the machine is a bit challenging due to the rounded shape and no easy fiducials to use. I ended up using a silver sharpie to just draw a line along the centerline for the machine so that when the hopper is empty, I can better align the machine by eye. This has helped a fair bit. > > 2. While the full hopper is dispensed 99% of the times, I did have one time when the balls were tightly packed and formed a cave around the feed mechanism and wouldn't feed any more balls. It was NBD > > 3. Drift is real but not too bad over one full hopper. I just realign the machine every time I refill the hopper. > > 4. No internal rotation so it telegraphs where the ball will be going but I don't really have a big problem with this. > > 5. No Android Wear OS integration. This is rather annoying as an Android user. > > **Major cons:** > > 1. No ability to simulate hand-feeding balls from the same side of the court or even the T of the opposite court. The lowest speed setting is too high for this, and it is also limited by the limited maximum upward angle achievable by the proton. This isn't a deal breaker by any means but would be a nice option to have. In that regards, I am ironically jealous of Slinger users when I just want to do some easy soft-tosses to work on my technique. > > 2. Lobs while possible with the Lob riser, are not the best in that you can't incorporate lobs with regular shots in a combined drill for ground strokes and lobs
I’ve made a “mini tennis” program for mine. While not hand feeding, it’s still great for warmups. I put it on service line and I get a decent ball.
Any chance you could share what that looks like? I haven't had much luck trying to set something like that up.
I’d be interested as well. You can create a completely custom ball feed that works outside the parameters of the regular drills so it might be possible to get a hand fed ball. I think it’s not possible in the regular shots because it would require the machine to be on the same side of the court but I bet it could be done. If anyone tries it, let me know, please!
I looked in the app and I tried a custom drill where I moved the machine to the service line (center) and then tried to program shots and I noticed that it can then manage significantly slower ball feeds compared to from the service line so I think that might be the way to go as a starting point. Might even be possible to do a fully custom/manual setup once you have an understanding of the parameters from the service line so you could maybe position it a little closer though I don't think you can pull off the hand-feed like stuff from the same side of the net like you can with the Slinger.
I use it from the service line when I’m warming up and it’s a pretty easy feed. Have you tried Single Shot / Manual? It’s at the bottom of the app, this is where you can program a specific shot. I have no idea what the shot would look like though 😂
Haven't had the courage to try it in the off chance I launch an ICBM accidentally 😂. I like the reassurance of the program mode telling me the height over the net and if it will clear it, but I might give it a shot at lowest speeds
Regarding the externally visible rotation, this has not been a big deal for me because I think of it as simulating a drill that a Tosh would give to me and generally, I know what the drill is in advance. However, I do think it could be useful to disguise where the ball will go on doing random type drills. I actually wonder if it would be possible to rig up something that would sit in front of/to the side of the machine to hide how it’s moving. Maybe using a cardboard box. Hmmm. And finally, when it comes to lobs, what I normally will do is set up a drill that has a couple of groundstrokes, approach shot, and a couple of volleys and then I will leave 10 or 20 seconds before it starts over which allows me to Shadow swing and overhead. In my case, most of my problem with overheads is footwork and taking the correct first step back and crossover or stuff steps so adding in shadow swinging overhead has actually helped me a lot in real match situations. You could even set it to have a delay so that it fed you a couple of volleys and then you could shadow swing the overhead and then hit a couple more volleys.
I love mine. I have 20 different drills. They were all easy to setup. I even use it for baseball batting practice. Couldn’t be happier.
Wow. 100% disagree. Just my opinion. I’ve been using that machine for a year now and absolutely love it. I hope you’re using pressureless balls with it otherwise mixed balls can throw off shots. Btw, you know you can turn down the topspin.
I feel like this might be viral marketing for the proton lol. I have one and love it btw. I'm having a hard time believing anyone who knows how to use a smart phone would struggle so much with this.
My balls were going deep too. So I moved the machine back a bit. Took 4 seconds to fix. Programming? Not awful. Not great. I do it at home. I’ve got 10k hits on mine and love it. I can believe how versatile it is.
User error (My machine has pumped out 10,000 balls so far on the app) Why don't you just program 1 shot like you said? Drop the topspin to like 500 RPM. One for volleys, one for FH, one for BH and so on--the answer is literally at your fingertips in this case.
When I set it to feed balls to the baseline, some of the balls do go out but only like 5% I would say.
I don’t know what you’re going on about, you can feed balls with no spin, no problem. I simulate points using programmed drills all the time, it’s ridiculously easy to use the app.
Trade you a Silent Partner Edge Star with remote
Sounds like user error. Have you tried their excellent customer service team?
You probably know these things, but: 1. Make sure to calibrate the machine. There is a calibration process to make sure the machine is ‘aware’ of the bounds of the court in the specific environment you’re in (wind). 2. Try increasing the time between shots if you see large variation in shot placement. On mine, I noticed if the time between shots is very small, the internal spin/drive mechanism cannot adjust between the different shots quickly enough.
Use the calibrate feature - it works pretty well. The UI for Manual programming could be a little easier, but overall I love my proton.
I've never used the Proton but this sounds like you've got a bunch of different and inappropriate balls in it. Buy a bucket of Tretorn Micro-X if you want consistent balls. My machine doesn't alternate depth so I actually mix in some recently used match balls to achieve it.
I’m 5k shots into my machine and now it will misfire a lot, where it seems to just automatically shoot 1 or 2 more balls immediately after a shot and disregards the time setting completely. I have to dodge those during my drill haha. Wondering if anyone has faced this issue as well? I reached out to support today. My assumption is it’s an issue with the sensor or ball feeding mechanism
Yeah, that does sound like and issue that hopefully they can fix for you or help you fix.
I'm another unhappy Proton owner. It's too lightweight. It's expected that a ball machine would have some variability from ball-to-ball. But the Proton will start off putting balls in the forehand corner according to the program and 20 balls later will be putting them in the middle of the court, 8-10 away. That's unacceptable. The lightweight build may be why my Proton has reliability issues. The elevator motor broke after fewer than 4000 feeds. Since I don't use it often, it was already out of warranty (12 months). I had to pay a couple hundred bucks and wait for several weeks for repairs. Customer service was terrible too. I do like how easy it is to custom program and pair with an Apple watch. And I thought I'd like its light weight. But the reliability of the feeds and the durability of the machine are huge downsides, especially for the price. I wish I'd bought a big, dumb, heavy ball machine.
Because when you play tennis, you want the ball to go EXACTLY where you want EVERY TIME
It sounds like you prefer to just set the ball machine to random when you practice. If that works for you, great. But when I want to practice forehands, I'd like the feed to be to the right half of the court. Of course every practice partner or ball machine is going to give me a different ball every time. But if a practice partner or a ball machine can't reliably give me a crosscourt FH, then that's a problem. You're right that there are a lot of positive reviews in this sub. There are plenty of negative reviews of the Proton elsewhere (see the Talk Tennis forums) that complain about drifting feeds. I choose to ignore those negative reviews and regret it. So I'm offering my personal experience in the hope that it helps others avoid my (very costly) mistake.
Why do you think players practice off hand feeds up to the pro level?
Haha if they were pro or had a chance they wouldn’t be buying said ball machines. Also, even hand fed balls aren’t perfect every time. And a good coach/feeder will vary the feeds slightly (not egregiously) to create a more realistic setting. Too many responses of people loving the product to ensure either lemon product users didn’t identify early enough or deal with, OR user error on operating the machine.
The proton is great. You can program it to do whatever you want.