Thanks, but I think they will be ok. I'll at least give em some more time before I send em back under the knife . We were on vacation all of last week and I wore them around for pretty much all week. Didnt notice the problem as much and the sandal isnt quite shifting so far anymore, at least I didnt notice the edge under my big toe anymore. Could be that they (or I) needed a little bit more break in time. I havent run in the recently but just walking around they performed great last week. Thanks again! Can't wait to get the PT's!