The Black Pearl Urethane is Hammer’s latest response to the new 78D hardness rule for the PBA Tour. This ball is harder than the Purple Pearl Urethane, creating more length and less total hook. To make up for the change in coverstock, the box finish is rougher on the Black Pearl Urethane compared to the Purple Pearl. This ball uses the same LED weight block as the Purple Pearl, NU Blue, and Purple Solid Reactive, giving it an RG of 2.650″ and a differential of 0.015″. As expected, the Black Pearl Urethane excelled on our dry test pattern, and Cranker’s high rev rate gave him the most versatility out of our three testers.
Cranker
Cranker had the best reaction of our three bowlers on the dry test pattern. His higher rev rate allowed him to shape this ball more and gave him slightly better pin carry than the other testers. He could swing this ball farther right and still get it to recover on this shorter pattern, but he needed…
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