I got a Perfect Rival just to see what Columbia had to offer, being a Hammer person, thought i'd just try something different. Am I surprised ! The PR is a great ball, solid but more reaction like a skid/flip without as much length as a pearl.
Pearls usually don't work well for me but I like more backend than most Columbia's have shown in the past. Those guys got it right with this one, IMO. Just got a second one for later, as with my luck, usually find a ball that works well for me and they get discontinued fast !
Get one if you can, I think you'll love it.
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az guy aka: R & L Bowlers Pro
rlbowlerspro@cox.net