The Roto Grip Theory features the Insight Solid Reactive shell that is finished with 2000 Abralon. This ball is the latest addition to Roto Grip’s Crown line and it has a new core with a lower RG and higher differential compared to the Cell series.

All three testers had their best looks with the Theory on the oily test pattern. The ball created strong traction in the midlane with its 2000 grit box finish and a continuous back end reaction. Cranker was able to achieve recovery from almost anywhere on the heavy pattern. Tweener’s reaction was almost equal to that of Cranker’s on this pattern, just farther to the right. Stroker was the straightest and slightly deeper than normal. This was a major ...