I can tell you my experience with the ball-It is very aggressive on shorter league shots(38-40 ft). I drilled my somewhat weaker (flare-wise) with the pin under my ring finger and the PSA right of my thumb with no weight hole and it is a mover on the back end on normal house shots. I have tryed it on a 43 ft sport pattern that a junior league had just finished on and it was still quite strong. Of course, the backend slowed down a bit, but it still gripped early enough to drive thru the deck well.
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Mike Craig-Columbus, OH