I always found thumb picks too tight and uncomfortable, if comfortable they would move around. I'm weird, I hold a pick basically upside down and play with what would be one of the two top rounded edges. The pick doesn't want to spin that way. It really can't hurt my playing....
i figured out as s guitar player that how you hold and use a pick can produce a variety of tones. There’s no wrong way to hold a pick if it works for you.
