I have a really uneven wear pattern on my shoes. After 150-200 miles, my right shoe will show considerable wear, especially in the forefoot, while my left shoe will show practically no wear and still look almost as good as new. I have chronic insertional achilles problems on the same side the shoe wears quickly and am wondering if they could be related. Also wondering what the cause of the uneven wear pattern is, weak hips, leg length discrepancy, or what.