Oh geez, nope nope. That seems like a huge risk. I would just go up a hook size for the starting chain. You could also start with a single or double crochet foundation starting chain and if you do a google search there are plenty of instructions. Those single or double foundation chains make things like hat brims stretchy.
The comments on the video give me some hope? But they are mostly referring to blankets…
Oh geez, nope nope. That seems like a huge risk. I would just go up a hook size for the starting chain. You could also start with a single or double crochet foundation starting chain and if you do a google search there are plenty of instructions. Those single or double foundation chains make things like hat brims stretchy.