I was on MXs as well... they work pretty well, though they're somewhat allergic to cold weather and REALLY like to have heat in them. The wear is less than stellar on a camber limited car like mine, I envy your 3 degrees I ran 60 or so runs, 3500 miles +2 days at VIR on mine then flipped them on the rims, put another 12 runs on them since then. They do seem to like a lot of pressure, the sidewalls are a bit squishy. They launch pretty well and have good steady-state and corner exit grip though.