It seems as though my ball is slipping out of my grip during the arm swing. Is this most likely thumb pitch or might it be a short span? Maybe something else might be causing this. I actually lost the ball on the down swing and it landed on the top of my ankle. Adding tape makes the thumb feel tighter as I put the tumb in, but it still seems as though I'm going to lose the ball during the arm swing.
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Nicanor (Ten On The Deck)