Hey folks, On the fiance's '09 Mazda 3, we've been having trouble keeping tires on it. Originally, the issue was that they would wear out on the inside edge, causing the tires to have an irreparable split seam there. After two wheel alignments (first one was at a tire shop that just played around with front toe and camber and called it a day), and three sets of tires (Sumitomos, Goodyear Eagles, and now Michelins), the issue has resurfaced again. Only this time, it seems the outer edge of both front tires is wearing faster than the rest of the tire. Her dad put the first set on the car, but I've bought the next two, and I'm averaging less than 20k miles per set. Frankly, if we can't figure it out and get it squared away, she's going to have to trade it. (Or buy the tires herself. LOL) Do y'all have any ideas? Thanks!