I did 4 or 5 track days with this tire- NJMP, Pocono and Watkins Glen. I was expecting these to be as good or better than the dunlop star specs. They fell well short of my expectations. In the dry they're just ok, when you're getting on the gas at the apex they need more time to grip than the SS. In the wet they hydroplane easily. Side walls are very weak, you can feel them buckle when the car is taking a set. I put SS back on and the car feels tranformed. Will not buy the PSS again.