So I just bought a pair of mountain extremes non-insulated, I have not worn them outside yet after reading more reviews and getting concerned about heeI slip.. have a pair of lowa Tibet’s that always give me heel blisters going uphill. I have tried taping, moleskin, sock liners and combinations with no luck, green super feet insoles no change. I plan to walk a few miles on a treadmill Max incline today to see how they feel. Any input on different insoles to help with heels? I have somewhat bony heels and wide toes. I wish someone would make a mountain boot the same shape and feel as an Altra!