Yes it can. I tend to change wrist positions a lot when im bowling because it is the easiest way for me adjust to lane conditions.

Lets take for instance my High Rev and my White Dot. My high rev i throw normally and my PAP is 4 13/16 over.

Now when i pick up my spare ball, i "Dial Out" my hand. Instead of having my hand locked into pocition with my fingers facing 11 o'clock and my thumb at 5 o'clock, my thumb is at 8 o'clock and my fingers are at 2 o'clock. I keep my wrist locked into that position the entire length of the arm swing. This causes my pap to change from 4 13/16 to 5 over and 1/2 up.

On another note, it might seem that im throwing my spare ball full roller holding the ball that way, but i dont.
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