BallReviews
General Category => Coverstock Preparation => Topic started by: NHS on September 01, 2015, 08:38:22 PM
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I'm trying to find some place that has the ra values for any ball, but haven't had any luck. Does anyone have any idea where I can find them ?
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Likely would have to contact the manufactures for that information.
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Ra values change as a ball is continually rolled down the lane, and the cover changes, and or you personally make a surface change to the ball.
However, Bowlers Journal lists Ra values of the factory surface in their ball review section. I believe they use the JayHawk surface scanning machine to get the Ra value and effective surface grit.
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Thanks tommygn, the information in BJ was just what I was looking for.