Have 92 600 sel. 2 of my wheels were bent, so I had them straightened. 1 Continental tire seemed slightly out of round, but wheels and tires balanced. Still some slight wheel shimmy can be felt. I am replacing my rear hyd/pneu shocks, and brake pads and rotors/discs all around now. I am hoping you are right about the 50-75 mph wheel shimmy. I should know within a week.