I never had any issues running this set-up. I have since retired the M6 from track duty and returned it to street driving only. Only tip i can give is rotate the tires at least after every 4 sessions. The front outside edges wear very quickly, so rotating often will help tire life, especially if you have factory spec camber. PM Sidney Page....his username is spiceman....he posted up above in post 54 of this thread. He is a good friend of mine and he tracks his M6 here locally with me. He followed my footsteps with the same size Apex wheels and Nt01 tires, but has taken it a step further with coilovers, camber plates, and larger sway bars. I believe he is getting much longer tire life with this set up than i ever did with just lowering springs and factory spec camber.