This has nothing to do with your shoe, or foot problem, but after reading (and buying into) Rivendells common sense information about flat pedals, I did a little experiment going across country. I bought MKS flat pedals from them and also carried spd's and Shimano sandals in my Bob trailer. I used the flat pedals exclusively across Maine, New Hampshire, Vermont and into New York. I then made the switch over to spd's, and after the first day mailed home the flat pedals. My experience is for anyone that can use a clipless setup, they transfer more power to the rear tire using the same amount of energy. Try it yourself. For going to the store or short rides or what ever floats your boat, flat pedals are very convinent, and I use mine around town. But for the open road, clipless are a noticeable improvement and well worth what little hassle they may cause when your off the bike. YMMV.