I said clips and straps, not bmx platforms plus wide straps like the Retrogression setup, which I have on one of my FG bikes. As to walkability, you can get plenty of very walkable cycling shoes to work with SPD pedals. Clips and straps are designed to work with slotted cleats attached to cycling shoes, and they are pretty useless with regular shoes, especially if you don't tighten the straps. Anyways, if you look at all the photos posted on this forum of people riding their bikes with clips and straps, half the time it seems they are riding on the backs of the pedals and not even using the clips / straps.