RE: Pass the salt... MAJOR kudos to the Muzzy Zero Effect rest!
I put a Zero Effect on my '07 Black Ice, and it shot wonderfully. The only thing was that I crossed the cables below the slide instead of above it, but it worked like a charm. I actually sold it along with the bow as a package deal when I sold off my '07 bows, and the guy who bought it is tickled pink with it.
I'd hate to try to draw comparisons between this and the Whisker Biscuit; they're just too entirely different animals. The Whisker has its legions of fans just like the ZE does. I would say that I've seen morethan a few pics on the 'net of rippled vanes with WB users, but there are those that will say they just weren't set up correctly.