Hello, these tires are Continental Extreme Contact Sports with 9 track days and the outer edges are taking a beating. The suspension is pretty much maxed out at -1 degrees of camber with just a touch of toe since it is mostly a street car. Start the day with the tires at the recommended 30 psi and bleed down to 35 hot. Planning on trying 37 next time but that may not be until Spring. What are others using in the blue group?