king,
I've counted with the BCB before, and it is challenging because there is so much darn print on the ball. Take a piece of White athletic tape about 2 inches by 2 inches and place it in the middle of the grip, between the thumb and fingers. Get someone to tape you from behind and throw away. have them focus on your release and then have them zoom in on the ball as it goes down the lane. Assuming you have your speed consistent that shouldn't be too much of a variable. You can count the revs of a ball by counting how many times the piece of tape goes around in a circle by watching the video in slow motion. and of course you can plug it into the equation for RPMs.
By the way, this is also assuming your pap is not in the palm. that would be harder to count with this method.
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I bowl at country club bowl...not a very inventive name now is it.