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Roto Grip Overseas Release United Pro CG 

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Overseas Release United Pro CG Specs

Product ID 10207 Brand Roto Grip
Finish Polished Ball Color Red/Yellow/Cobalt Blue
Lane Condition Medium-Heavy Coverstock Reactive Resin
Ball Quality First Quality Factory Finish 1500 grit Polish
Coverstock Name Armor Solid Reactive Core Name CAM Core
Durometer 73-75 Flare Potential 7" + (High)
Core Type Asymmetric Performance Pro Performance[10]
Roto Grip Product Line Royal    
Originally Sold For: $169.99
At Roto Grip, we pride ourselves in being the best at what we do. Being true to our beliefs is important to our continued success. So the new United will continue to utilize the reputable cores and coverstocks which have helped bring Roto Grip to where we are today. One such proven design is the CAM Core which powered the Kingdoms and Republic. It offers a mild asymmetry which is the perfect blend of power and predictability. This weight block shape gives you the confidence you need to attack any lane condition. The high total differential produces more axis migration and total hook, just what you've come to love with the Royal Line. But we all know that while the weight block/core system is crucial to maximizing bowling performance, it's the coverstock which actually touches the lane surface and makes the magic happen. So we chose the highly polished Armor™ solid reactive cover to help provide continuous traction throughout the entire oil pattern. If you have higher ball speed, the 1500-grit polished finish can be made more aggressive through the use of Abralon.

Roto Grip "Pro CG" Technology

PRO-CG: A Pro-CG is where the CG ends up a certain distance left or right of the Pin and PSA (preferred spin axis). If you draw a line from the PIN to the PSA on average the CG would need to be 2" or more from that line. That distance will vary depending on if the CG was to the right or left. Although still categorized as a first quality ball it has limited drill options (see our Pro-CG Drilling Options) that requires a certain type of layout. Please consult your pro shop professional before purchasing one of these balls. How or why is a Pro-CG manufactured? A pro-cg is created during the manufacturing process. When the pin area is being drilled the core can slightly shift. When the weight block shifts just a small amount (1/16" - 1/32") it pulls the CG off the Y axis towards the Z axis. This is why on some balls you will notice the CG is a far distance away from the Pin to PSA line. These small shifts do not affect the reaction or quality of the product, but it can limit the drilling options. Therefore we offer a different set of drilling instructions and mark them as Pro CG's. How much does the CG matter? The CG is the least of your worries when trying to match up a bowling ball to a bowler for their desired reaction. To learn more about how the CG's relevance and other factors when determining ball reaction, see our chart below provided by the U.S.B.C. Please also visit and read some of their more recent articles on ball motion studies. (The U.S.B.C. is an independent organization with a common goal to protect the sport of bowling).

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