Bad shocks or need an alignment?? Since negative camber eats up inside of the tires, what causes the tires to have bumps when you run your hands on top of it? The car is stock with less than 10k miles.

 

On all four stock Bridgestones you have "bumps"?

I had tires on my truck that developed these bumps and it was because they were bad/defective tires.
You would want to take care of this condition before any high speed manuevers(sp?), it`s pre-blowout, imo.

 

I got those bumps on the only RE-10s I every used. The front right side corded, and the front left had those bumps. I'm guessing it would have corded also, but I didn't run them any longer. This was after a two day event, so they had taken a lot of abuse in a short time.

 

Lack of rotation and wrong pressures will contribute quite a bit. The softer the tire, the more often you have to rotate. I rotated mine every 3K, and got about 11K out of them with a little more wear on inner half of the tread.

 

also toe being out of specs will cause the tires to cup. Mine were pretty bad at 1300 miles because the toe was way out in the rear (about .3 inches out). Had the car realinged and it evened out after a few thousand miles.