I just rotated my tires at 36k from the back to the front. Granted they were on the back for about 29k, but both of them have cupping on the inside and they make a horrible noise. I have read that mazdas have this problem due to the "aggressive" set up, which is why they recommend more frequent rotations. Does anyone have this problem? I do not think it is my struts and I do not know if an alignment would help. The car is all stock.