You're looking to maximize your sidespin. Blooper has a lot of spin in general, but only sidespin affects how much your shot curves (Yes, I've tested this extensively). The Boo stuff has a lot more sidespin than the Blooper stuff, and the slice stat, which blooper stuff specializes in, really just affects how much underspin you give the ball. Try it out for yourself; you'll notice that the Boo stuff makes the ball curve a lot more.
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