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:Overdrive Pearl
Type:Reactive Pearl
Box Finish:500 / 500 / 500 / 1500 Abranet / Powerhouse Factory Finish Polish
Color:Purple / Gold / Green
Empty
Core Specs
Name:Power Shot
Type:Asymmetrical
RG:2.48
Diff:0.054
Int. Diff:0.013

The Hammer Amp Up is the follow-up release to the Amp. This time, the Power Shot core is wrapped with a pearlized coverstock named Overdrive Pearl.

The extra length and back end from this cover gave our test team the best line to the pocket on our medium test pattern. All three testers took advantage of the strong midlane and back end motion. All three were able to see plenty of hook downlane without having to worry about it checking up too early.

As a whole, our testers had equal reactions on our sport and heavy test patterns. On both

The Hammer Amp Up is the follow-up release to the Amp. This time, the Power Shot core is wrapped with a pearlized coverstock named Overdrive Pearl.

The extra length and back end from this cover gave our test team the best line to the pocket on our medium test pattern. All three testers took advantage of the strong midlane and back end motion. All three were able to see plenty of hook downlane without having to worry about it checking up too early.

As a whole, our testers had equal reactions on our sport and heavy test patterns. On both

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.