Bowler Ratings

PatternStTwCr
Oily:X.XX.XX.X
Medium:X.XX.XX.X
Dry:X.XX.XX.X
Sport:X.XX.XX.X

Bowler ratings are from 1 to 10 in order of Stroker (ST), Tweener (TW), Cranker (CR)

Note: Ratings are only available to our subscribers.

General Info

Coverstock Specs
Name:51ML
Type:Reactive Pearl
Box Finish:1500 Grit Polished
Color:Sky Blue / Emerald
Empty
Core Specs
Name:NA
Type:Symmetrical
RG:2.55
Diff:0.042
Int. Diff:0.000

The Shatter is the newest release in Roto Grip’s HP2 line. The Shatter shares the core shape with the other two balls in this line, the Shooting Star and the Rising Star. This ball has a pearlized coverstock that comes at the standard Utah finish of 1500 grit polish.

This cover and core match gave us the best look on our medium test pattern. Tweener had the best reaction on this pattern. He could stay closer to the track and have the ball go more down and in or he could move deeper and feed it right, watching it come back shot after shot. Our other two testers had one reaction but not the other. Stroker had the down and ...

The BTM Ball Testing Team

About The BTM Ball Testing Team

The BTM Ball Testing Team is led by Eric Martinez. Our team of three testers has thrown and reviewed hundreds of bowling balls for Bowling This Month. When not testing balls for BTM, Eric owns and operates University Pro Shop in San Antonio, TX and he is an avid competitive bowler. Click here to learn more about how we test and review bowling balls.