Okay, so it probably wasn't warped. I've had the typical problems of vibration and shimmying when I put my foot on the brake. On one occasion I had the rotors turned, and that solved the problem for a while. On another occasion I bought new rotors, and that solved the problem for a while. On both occasions, the vibration would return after a few thousand miles.
Based on the distinct possibility that the rotors weren't warped, but were only bedded improperly, yesterday I ran the car to 60 mph, and came to an abrupt stop (well, almost stopped). Then I quickly accelerated to 60, and stood on the brakes again. I did this 6-8 times, until I could smell the brakes. My idea was that I needed to re-bed the brake pads. It seemed to work. Right now, when I step on the brakes, it is as smooth as it was when I had new rotors.
Now if it will only last.
