Built for Everyone From casual bowlers to Major title winners, the Roto Grip Hustle series offers advanced technologies suitable for all skill levels. Whether you seek a specific reaction for lighter oil conditions or need your first ball, there's a Hustle that fits perfectly. HUSTLE CORE The Hustle Core delivers an overall performance motion in the entry-level price range while ensuring control and stability. Its medium RG and medium differential design surpassed expectations, even contributing to recording the 34th sanctioned 900 in USBC history with the Hustle INK. VTC™ COVERSTOCK The Versatile Traction Control (VTC) coverstock is designed for durability and consistent performance, especially for the HP1 and HP2 lines. This formula offers outstanding performance, control, and versatility without being overly aggressive, making it ideal for stability seekers.