What's that you say? Ball shoots off your hand like a speeding bullet? Do you bowl in a center that believes in oiling to the pin deck, or so it seems? With its 1200 grit sanded Trimax reactive coverstock, the Vortex II is the answer. Known by better bowlers as the most versatile reactive on the market, this center-heavy, extremely low RG version of the Nitro R2 core, is designed to rev quicker and hook sooner. Strong and steady. No surprises.