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

Name:Sigma Hybrid
Reviewed:May 2012
Coverstock Specs
Name:Atomix Hybrid Reactive
Type:Reactive Hybrid
Box Finish:1000 Grit Wet Sand
Color:Diablo Red / Charcoal Pearl
Core Specs
Int. Diff:0.000

For details on our standard test layouts, please click here.

The Motiv Sigma Hybrid takes the core from the Sigma Tour and wraps it with a hybrid formulation of the Atomix coverstock.

We decided to graph this ball on the medium test pattern for a few reasons. As seen on the Digitrax, each tester was around an arrow deeper than the previous tester. Tweener and Cranker had a slight issue with carrying the 10 pin. Once they made the adjustment of slowing their ball speed down, the corner fell much more often. We left the balls at the box finish on this pattern. We felt making any alterations would move the testers from the zones they were in and since all three were all over the pocket, we went with

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.