[shadowwalker]

One suggestion I can make is buy knee high women's nylons, put them under your socks. This helps with friction, it is an old trick, a very old friend in SF told me about before I ever went into the army. I also still have calluses on the top sides and bottom of my feet and even though I am retired I cover between 5 and 10 miles 5 days a week. I was not in Special Forces but I did complete and train for an annual march conducted in the Netherlands. I also caught the flu by the second day and finished the last three days of 25 miles a day, with 103 degree temperature. The first 15 miles is your body after that it is the mind that keeps you going. It is my opinion that being physically fit and able to complete missions should be a lifetime goal and not a temporary or short term goal.