i have run devotedly in the 13's (put about 2500 miles on the 13's this past season--different shoes, but consistently teh 13's). I just switched to the 14s. after a week of about 55 miles put on them (some tempo. mostly easy runs) i started to experience pain in my inner ankle--similar to posterior tibial tendinitis (at least the location of the pain was similar. never had PTT, so don't know if the symptoms are alike). went back to my 13's this morning and the pain is almost all gone.
do you guys think this has to do with the new cushioning?