[swamp2]

I tried my extremely worn PS2's at the track this weekend with absolutely terrible results. My experiences with tires up to this point told me the same thing. With street tires, when they get worn down to the wear bars (and even a bit before that point) the traction begin to substantially decrease. You can simply feel more wheel spin in hard acceleration and more slip in corners with really worn street tires. Anyway mine were worn enough that it significantly screwed up my track days. My rear end was really loose. I had to baby the car through the course. Early on I even got caught with a very surprise series of tail outs that almost turned into a full spin. Anyway, I appreciate the advice but it turned out to be completely incorrect. I really should have gone with my gut based on much prior experience on the street.