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.

Track Tactix Hybrid


The Tactix Hybrid joins the original Tactix in Track's Upper Mid Performance line. This ball features the QR-9 Hybrid coverstock that was used previously on the Paradox Black. It comes out of the box prepped with 500/1000 Abralon and Powerhouse... [Read More]

Roto Grip MVP


The MVP is the new reactive hybrid addition to Roto Grip's HP2 lineup, joining the Winner and Winner Solid. This ball uses the new Neutron NXT core design, which was modeled off Neutron core from the Wrecker. The cover is... [Read More]

DV8 Poison Pearl


The DV8 Poison Pearl is the second ball to use the symmetrical Toxicity core design. This is the same weight block that was used in the original Poison, but this time it is paired with a different coverstock. Instead of... [Read More]

Brunswick Hero

Brunswick Hero

The Hero is one of three releases in the Brunswick Advanced line for the upcoming 2019 league season. It joins the two new Jagged Edges, the Cutting Edges, and the Fearless in this line. The Hero uses the same Activator... [Read More]

Columbia 300 Resurgence


The Resurgence is a remake from Columbia 300. This ball uses the same Resurgence core shape that has been used frequently in C300 balls since its inception. This core was brought into a lower price point in the Eruption line... [Read More]

DV8 Instigator

DV8 Instigator

The Instigator introduces a new coverstock and a new core design to the DV8 family. Its Assailant core is an asymmetrical shape with a low RG (2.481") and high total differential (0.051"). Despite being a strong reactive solid, the Instigator's... [Read More]

Roto Grip Halo Vision


The Roto Grip Halo Vision is the new hybrid-covered addition to the Halo series, coming out of the box at a 4000 grit finish. Along with the Halo and Halo Pearl, the Vision is the third ball in Roto Grip's... [Read More]

Radical Zing


The Zing is the newest addition to Radical's high performance Top Shelf product line. It uses the Forged 2 Solid coverstock from the Conspiracy and pairs it with an asymmetrical core that has a slightly lower RG and a slightly... [Read More]

DV8 Night Prowler


The Night Prowler uses the same asymmetrical Divergent core design that was used in the original Prowler. Also like the original, this new release uses Brunswick's Durability Optimization Technology (DOT) and DynamiCore filler material. The changes come in the coverstock,... [Read More]

Radical Squatch Solid


The Radical Squatch Solid uses the same symmetrical core as the original Squatch, which gives it an RG of 2.482" and a total differential of 0.054". Its Ai-39 reactive solid coverstock is finished with 500, 1000, and 2000 SiaAir pads,... [Read More]