Has nobody else had a problem with the heel tab? First time I wore them made a hole in my left heel, patched it up etc and then wore them for Langdale and got a big rub on my other heel. Going to try some blister patches you put onto the inside of the shoe for Passing Clouds this Sunday. I'm persevering because I like them in every other respect but I can't believe they haven't ffected anybody else this way. I am not at all prone to blisters usually.