Roto Grip Bowling Balls. ROTO GRIP Pro CG TechnologyROTO GRIP's PRO CG technology is taking layouts and ball reaction to the extreme. Once only used on the PBA Tour for condition specific drillings, these balls are now being made available in limited quantities to the general bowling public. Why As the requests, requirements, and styles of today's bowler changes to address new lane conditions and patterns, ROTO GRIP is answering by providing and packaging these items separately from the standard first run items due to their unique nature and value.ROTO GRIP PRO CG bowling balls are All first quality ROTO GRIP bowling balls Manufactured with the same high quality standards as all other ROTO GRIP products Manufactured with the highest integrity Made with the same high quality materials as all other ROTO GRIP products Great for specialized layouts and drilling options Potential for enhancing dynamic use of core position Meet all A.B.C., U.S.B.C. and P.B.A. regulationsWIDELY USED BY ROTO GRIP PBA STAFFERS BE THE FIRST AND MAYBE THE ONLY ONE TO OWN A PRO CG IN YOUR BOWLING CENTER TO OWN ONE OF THE ALL NEW PRO CG SERIES BOWLING BALLS. COMES WITH COMPLETE DRILLING INSTRUCTIONS AS RECOMMENDED BY ROTO GRIP AND THEIR PRO STAFF.USED ALMOST EXCLUSIVELY ON THE PROFESSIONAL BOWLING TOUR....The journey continues with the introduction of the Epic Odyssey. Since the inception of the Epic line in 2004, Roto Grip has been on the forefront of High Performance asymmetrical technology with the Maximustm core and the Ultimate Vision line of coverstocks.The Odyssey is a defining introduction with the quick spinning Maximus II core, and the enhanced traction Ultimate Vision solid reactive coverstock. This combination is guaranteed to provide the most versatile asymmetrical bowling ball on the market today.