[CWizard]

Warren & Niles - Thanks. Wheels are Superformance pin drive knock-offs. I don't have a dial indicator, but I'm sure the dealer does. He has been working very closely with me on diagnosing this problem. My next step will be to get the car back to him (dealer is 150 miles away) to get the hubs and rotors checked, and whatever else his mechanic wants to check. I'll post results.