So, all four of my wheels are wearing badly from the inner edge of the tire to about 1 inch in toward the middle. I'm at 18k miles on the tires. The tire shop seems to think that it's because of the factory camber setting, due to it being a sports car. They want to adjust the camber to get the tires more vertical, thereby producing a more even wear on the tread. So my question is, has anyone else experienced this and is it normal? Also, would you consider have the camber altered to buy a few more miles on the tires? I don't do auto-cross, but I also don't want to lose any of that "hold the road in a curve" experience either. Opinions welcome!