Hummm... A few months ago we had a thread going about the problems with these and Mad Dart called them and they told him they knew about the problem and had the correct one in the works and within a couple months would be out. Looks like they either dropped the ball and don't have it out yet or tried to pawn off one of the mis-machined ones on you. That sure sucks.
That's the one I want to get but if I get a bad one I'll be pissed.
I may just roll down the street to mancini with a stock balancer to compare and get something there. I dont need any grief.