Back end ratings seem to confuse bowlers. A ball’s “back end” is the angle or degree of hook at the breakpoint. The confusion comes from the term “back end.” The ball may break at 20 feet, 30 feet, or 40 feet. That doesn’t matter. What you are evaluating is not how much it hooks, but more WHEN it hooks; i.e. the ability of a ball to make a turn back to the pocket. Since there is the potential for balls to have more and less back end, BTM needed a benchmark that would leave room in both directions. Again, the Danger Zone was selected and it was assigned a back end rating of 10. Remember that these are comparisons so 10 doesn’t mean anything by itself. It would mean for comparisons that it is stronger than balls rated 9.5 and lower and it would be weaker than balls rated at 10.5 and higher.
BACK END (AS APPLIED TO A BALL)
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