I don't wacky rig them, I t-rig them and have had success.
Ish Monroe's interview with TackleTour:
I.Monroe: You know what? I love them all. I really do. Not one bait in the Reaction Innovations line is junk. A lot of people don't like the ball breaker but that's because they're not fishing it right. Most people wacky rig it because that's what they think it's for, but I fish it Texas rigged with no weight and retrieve it. When you retrieve it through the water, that ball will kick back and forth like a swimbait.
http://www.tackletour.com/reviewinterviewishmonroepg2.html