I would definately say the Strike Zone or the Vapor Zone. With the zone line, they are asymetric, which means you have more drilling options with the position of the PSA. I have a Strike Zone drilled for a med-med/heavy condition, & could'nt be happier with it. For leagues, I don't even carry my Ultimate Inferno any more cause the Strike Zone will handle all I encounter. Very rarely have I run accross one of my Zone balls that the ball has burned up, I would recommend any of them. Another question is, are you looking for a pearlized reactive or a solid reactive?
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I Absolutely LOVE my Ultimate Inferno, but Ultimately I LOVE my Absolute Inferno!
Bowling is more fun when you only have to throw 1 ball..........F*#k the 10 pin!!