Mine wobbles too I've seen this in a couple threads on snipercentral, I'm going to call Matt tomorrow and talk to him. I've played with it quite a bit if you loosen the screws and push it down all the way and leave it loose it spins true, so the potential is there to be perfect but when you tighten the allens they lift the turret up and out of alignment. I know in an e-mail he thought he had the problem solved with the gen 4's.
I shot again today and am still amazed at how accuratly it tracks, you move the turret the bullet will go exactly where it should. I know this isn't out of the norm for the higher end stuff but the weaver it replace doesn't come close to tracking with it. The first time I took it out I took one shot then dialed the changes in then took one more and it was dead zeroed, I have never had a scope that would to that, even the Leupolds I've shot took a couple shots to settle down. I am way more confident dialing this scope than any weaver or leupold I've shot.