so you put white tape inside your grips??   interesting.......

and yes having a "soft" hand actually is a plus in bowling, its one of those less is more type of deals.....

Whoops. I have it in my interchangeable thumbs. Poor word choice there. Previously, I had been trying to force more revs on the ball. Now I am not doing any of that. The revs are coming naturally. I do know when I accidentally grip the ball a little more. It does not come off as cleanly, and the ball is unlikely to recover and hit the head pin.

I've heard of other folks doing this. Whatever works.

Gripping, grabbing, squeezing... Whatever word choice you want to use, I was bending my thumb in the hole. This created an endless cycle of the ball sticking to my thumb, and me needing to insert a larger thumb slug, resulting in my bending my thumb a little more. And I like my thumb holes to be slick rather than rough because of my hands sweating so much, so I needed the white tape to allow my thumb to grip the slug. Between keeping my thumb relaxed and the weather being cold, I am currently down to my smallest insert and blowing in the thumb hole every few shots.