Bowler Ratings


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

Note: Ratings are only available to our premium members.

General Info

Coverstock Specs
Name:Overdrive Hybrid Reactive
Type:Reactive Hybrid
Box Finish:500 / 1000 Abralon / Powerhouse Clean 'n Sheen
Color:Red / Blue
Core Specs
Int. Diff:0.013

The Amp offers all new elements for Hammer bowling. It uses a new core shape named Powershot. This new lower RG core is surrounded by a brand new hybrid coverstock. The Overdrive Hybrid Reactive coverstock comes out of the box with the finishing process of 500/1000 Abralon and then a coat of Powerhouse Clean ‘n Sheen.

The strong coverstock, box finish, and core gave us the best ball reaction on our heavy test pattern. This cover really showed how strong it was on this pattern. It is not a regular occurrence for us to have enough traction on this pattern from

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.