I seem to have tempted fate by starting this thread. My uppers started tearing in the last couple days and so bought another pair. I guess I'll start rotating them, using the new pair for the longer distances.
I've been running regularly for about 7 years and changed my shoes after 500 miles or so. In the last year I switched from a heel landing to mid-foot landing (along with faster and shorter strides). I've now covered more than 1300 miles in my current pair and they are absolutely fine and achieved good PBs at 10K, half and full marathons. Question is: has anyone else had a similar experience with their shoe mileage? I use Asics 21*0 (currently 2160).
I must confess that I've read "Born to Run", "Running with Kenyans" and "Eat & Run" which have influenced but not dictated my changes.