Leave'em where they lie..... AND if you ever go to your service department and they ask you if you want them rotated, back the hell out of there and find someone that knows what they're doing! /phpBB/images/smiles/icon_wink.gif
Sounds like sound advise, any thoughts on service as most of us buy out of town and have to have the car serviced by a local chevy dealer, I don't think I will leave the car, I'll wait and reset the trip meter to zero. Also I don't know if the LS6 is a lot different than the LS1 on normal maintenance and if they have ever even seen one.
I do a fair amount of autocrossing and have rotated the tires right to left with no problems. Haven't gone over 110mph with the switch but I didn't notice any vibration. At one event, a Goodyear engineer was there in a C5 convertible with Z06 wheels and tires. He mentioned I could flip them inside out and run them to the bare treads If I wanted. However autocrossing and track events are different than running on the street. By the way, he plans on comming out with an autocross compound for Z06 tires sizes (NCCC) at the end of this month.