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Bowling Ball Differential of RG

Understanding the term bowling ball differential of RG (radius of gyration) will help you make a good decision in purchasing your next bowling ball. There are a few key factors in ball construction to consider when choosing a new bowling ball.

First, coverstock makeup of a bowling ball will determine the gripping power of the given bowling ball on the lane surface. Next, the core design will help determine the ball motion or shape of ball reaction while the given ball is rolling down the lane.

Within the core of any bowling ball exists measurements of mass distribution which are used to measure a bowling ball in motion on the lane-surface. The bowling ball differential RG is one key measurement engineers use to identify the difference of the RG of a given bowling ball’s “X-axis” (weight block vertical measurement) compared to the RG of the “Y” or “Z” axes (weight block horizontal measurements).

Differential of RG is an indicator of a given ball’s flare potential. High Differential of RG balls have a high degree of track flare while low Differential of RG balls have low track flare. Length adjustments by use of given drilling patterns is created by using bowling balls with various differential ratings.

Low Differential RG balls will encourage a mild hook potential from the break point to the pocket (for left and right handed bowlers alike) on the lane surface about two thirds of the way down the lane, medium differential balls will hook or arc modestly and more pronounced than low differential balls from the break point to the pocket and finally, high differential balls will hook sharply on the back end of the lane.

The strategy you need to consider in choosing a new ball relating to the Differential of RG factor is how sharply you wish for the ball react down the lane at the break point? As an example, if the lane conditions you regularly encounter have a high volume of oil on the front end of the lane and promote targeting a fairly straight angle using the first or second arrow fifteen feet past the foul line, then using a ball with low differential will prevent severe hook across the pocket down the lane. If lane conditions have medium oil, then choosing a ball with medium differential RG will match well because medium differential bowling balls hook or arc decisively down the lane and match well when playing the second or third arrow in your targeting procedure. Dry lane conditions usually require playing increased angles closer to the center of the lane at the arrows out to the break point down the lane and a high differential ball will provide sufficient hook potential to help the ball recover on the back end. In summary, it can be said that differential ratings are factors in determining the hook potential a given ball possesses from the break point to the pocket on the back end of the lane.

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