Once again GM steers us right!
I not only got the RE050A Pole Position (be sure you got the PPs as there is abig difference to the non PP tires) and they are terrific tires. A big improvement over the MPS1 in every way. My old MPS would feel a little out of balance when Id even let the car sit for a few days- and it would go away as I drove- usually took 5-10 minutes. With the tire cradles its smooth driving from the get go. I can put up with that 5-10 minute drive to reorient the tires, but I would think a prolonged sitting would cause more permanent flat spotting.