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

Reviewed:February 2011
Coverstock Specs
Name:UMP GEN 4A Reactive Pearl
Type:Reactive Pearl
Box Finish:800 / 1000 / 2000 / 2000 Abralon / Polish
Color:Black / Blue / Caramel
Core Specs
Int. Diff:0.018

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

The upper-mid performance Track 718A features both a new core and cover for Track. The new Robot core offers a combination of a lower RG and higher differential as well as intermediate differential compared to the Catback core used in the 715 series. This core and the UMP Gen4A Reactive Pearl cover combine to create more friction with the lane than the 715A. The 718A will match up best with medium type oil patterns. The difference between the 715A and this ball is the 718A’s ability to handle medium-oily patterns. Although the ball will struggle on true heavy oil patterns, it will find its way out of the bag sooner than the 715A.

During our testing, all three testers found the 718A to match up best with our medium test pattern. What we

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.