LOL !! I had one and was bound and determined to use it ... till I tried degreeing the cam. I'm no quitter but I finally threw in the towel on that one and sold the unit. If they'd make the idler gear the same size as the crank gear it wouldn't be a problem but they're not. And the marks are on the three gears, not just the crank and cam. So when you turn the motor over you loose all reference. That seemed to be my problem anyway.

But I don't think a gear drive was a "day 2" mod in anyone's budget unless you had a pro stocker.