WHY!?!!
honestly, your questions are getting stranger and stranger, if you want to change your axis rotation, change your hand position on the ball, behind the ball to beside the ball on release, screwing with your span is a good way to hurt your hand, even the slightest bit can be bad. get the ball properly drilled for your hand then work on what YOU can do, not what the ball can do for you.
to answer your original question, rev's can be affected if the improper span causes your grip on the ball to be off, if you can't hold the ball correctly, everything may suffer
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