My 3 pairs of trail shoes size 7.5 are now too small due to a year of inactivity for an injury. I put an ad for used Merrells(womens) to no avail. It's clear to me that I need to buy new. I've been reading WB's forums on the Merrell Moabs. My question is, since I now wear an 8, should I order those, or do the Moabs run small? Did any of you go up in size? Thanks.....thinking about the mids instead of lows.