ski-hippieI think all your boots are too loose, I've always had mad tight boots cause I can feel the ski better and I have never had this problem
Actually, its not even a problem. Being hungry in the backcountry without food is a problem. The clean shaven shin is caused by the hair getting caught in the socks by the expansion and contraction of the material and the rubbing under pressure when riding aggressively forward in your boot. Its more of a sign you are going everything right.
The biggest flaw of full tilts is the slack feeling and the bad pressure points on the ankle tendons that keeps me from being too tight around the shin. They are perfect in the park, but you have to suffer if you are doing anything else. At least the heel and feet are very well secured.