Radical Revenge bowling ball features proven Sneak Attack core with HK-22 coverstock in solid and pearl versions. Moderately priced, high-performance ball for all skill levels. Revenge is Sweet – Now in Two Flavors We have all heard the saying “Revenge is sweet.” With the launch of the new Radical Revenge, it comes in two flavors: solid and pearl. In fact, the Revenge fills the performance category vacated by the discontinuation of the popular Sneak Attack. Moreover, it brings proven core technology together with modern coverstock innovation. As a result, you get moderately priced equipment with high performance that works for bowlers of all skill levels. Proven Core Technology from Sneak Attack First, the Revenge features the same popular core we used in the Sneak Attack. Specifically, the RG is 2.54, and the differential is .034. In other words, this creates very usable performance for many different bowlers. Additionally, these numbers strike the perfect balance between control and versatility. Therefore, whether you’re a beginner or experienced bowler, this core adapts to your game.