actually,
the ziljian antivibe sticks might be a huge minus point IF you're doing outdoor gigs or performances - be it a light or heavy hitter.
bad for light hitters coz you'll have to hit harder to get the volume you want, and that may just as well cramp or tire you up and out.
bad for heavy hitters coz you might just break the sticks, which aren't just light but empty in the lower shaft as well.