There is also the drill sheet for any visionary amb ball. You know where you have to first go and mark the mb, after going 13 1/2" around the ball from the amb (anti-mass bias) threw the pin and down to where the mb should be. LOL, yet still not as bad as the NM. LOL.
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Mark "scoot" Trgovac
C-G Pro Shop
Official "Spokesman"
Youngstown, Ohio
(The fallowing is said in a larry the cable guy type voice) "You mean to tell me that if I drill a Mass bias Ba-all, that the cd dunt matter for anything other then wens you weight it up?"
"Freak Bowling Ball cleaner of the TRACK Revolution."