So I did my first 21 miler on Monday into Fontana... My feet were messed up so I took a zero there, which was nice. Wednesday I headed into the smokies and did 13.2, 14.7, and 13 miles the last three days. On the 14.7 day I noticed my feet getting pretty freaking sore around hour 6, and today going into newfound gap, they got really sore around hour 3, to where the last few miles were almost unbearable. I did notice last night as I was standing in the shelter that the soles of my feet felt almost like they were bruised... Tender and a bit sore when standing and the like. I have some Keen waterproofs (anticipating snow) with blue superfeets. My thought is the superfeets are too thin - they're barely 1/8" (if that) thick. Do I just need some more cushion in there? I don't think I'm pushing myself too hard, anyways. Either way the weather will probably keep me in Gburg til Monday to give the feet a good rest. Any ideas or thoughts are greatly appreciated!