I had horrible problems with my thumb UNTIL I got oval thumb slugs put in. Then all my thumb problems went ***Poof*** .... gone.. You didn't mention what kind of thumb hole you have, but they usually start you out with round ones without even looking at the shape of your thumb. It took me going through two pro shops before I found one that diagnosed the problem correctly. Anyway, now I have plenty of wiggle room for thumb tape and the tape stays on all three games. (I never use powder). No more cramming my thumb in the ball and no sticking anymore. So that is my experience anyway. HTH.
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