My first set of tires wore on inside(stock). Toe setting was causing it more then chamber. My car is lowered and tires are wearing evenly. A friend of mine, owner of Morris Eng. Suspension is curently working on chamber adjustment plates for celica and neon. Said he will take a look and see if he can make some for contour. Probably within a month, when he can find time. If he can i'll post something in GB if anyone is interested.