the reason that the Lane#1 SCB have been deemed nonconforming is because they have an RG Differential of.071. The maximum allowable RG Diff is .060. The USBC just recently changed that limit, that is why those balls are on the list. I can only imagine that is why the resy of the reactive and particle balls are on that list, as for the plastic balls, do I have to tell you why they are on there?
Regards
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The Cyrness: Member -Fellowship of The Saws
Owner- Limestone Bowling Supply