I am running Toyo R888's and have found what is to me an unusual wear pattern. The 888's as you know have chevron like grooves. I have on the front tires a pattern where the inside groove edges are sharp and very worn. The outside grooves however are not as worn and the edges are kinda rolled with excess rubber built up along the entire groove. The outside edge of the tire also has turned slightly blue. Is this a camber issue?? I have adjusted the camber down slightly as suggested by Toyo and the Miata crew who use these tires. I also adjusted the tire pressure down significantly and the temps were even across the tire after the last race.