Weight
14 pounds
PBA Approval Date
Release Date
Discontinued
The Proof is a new upper mid performance release with possibly the strongest core numbers ever in this category and an updated Prime cover that will get Track Bowling fans excited. The Proof is very strong and continuous and surprised our testers because it is usable for a long time and does not seem to want to quit, despite the strong core, cover, and finish combination.
Factory Finish
500/2000 Siaair Micro Pad
Prime Response Coverstock
Type
Solid Reactive
Proof Core
Core Type
Asymmetric
16 pounds
RG
2.506
Diff
0.052
MB Diff
0.020
15 pounds
RG
2.519
Diff
0.052
MB Diff
0.020
14 pounds
RG
2.538
Diff
0.052
MB Diff
0.020
13 pounds
RG
2.589
Diff
0.043
MB Diff
0.011
12 pounds
RG
2.612
Diff
0.043
MB Diff
0.011
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