The Rockstar rolls into Roto Grip’s HP3 line as the Optimum Idol makes its exit from their list of current products. This ball uses the new symmetrical Rocker core design, which is surrounded by the Amplified Inertia (AI) outer core. The RG from this new core shape is slightly higher (2.48″) than the Ikon + AI design (2.47″). The differential is lowered from 0.056″ on the Optimum Idol to 0.050″ on the Rockstar. The coverstock is also different, as the Rockstar features the new NanoStar Solid Reactive formula. It comes out of the box at a 2000 Abralon finish, which is the same finish as the MicroTrax Solid cover that was on the Optimum Idol. With all these changes, we saw more length from the Rockstar and a much smoother motion when it found friction. We had more success the straighter we could stay with the Rockstar, and our two testers who prefer to play straighter liked this ball more than the one who covers more boards.
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