Nope, not a bad idea. I thought it was driving a little different but now after 30 or so miles, its fine. The car rides fine and no shimmy or shakes. Blizzaks do seem to be a little louder but I guess thats the rubber compound. We're supposed to get some snow tomorrow followed by 12-14 hours of freezing rain/sleet. I'll try to take a spin in the snow before I park it for the ice storm. I'll let ya know tomorrow