I've used clipless for over five years now, but am seriously thinking about going back to either toe clips or powerstraps. I'm finding that no combination of cleat adjustment or even different shows prevent me from developing hot foot on longer rides. Additionally, now that it getting colder, my feet just don't tolerate the heat sink from shoe through the cleat to the pedal, despite the attempts I have made to insulate. I'm also looking at pedal mods for my recumbent trike. Preventing foot suck makes it necessary to positively fix your feet to the pedals. I currently run SPD pedals, but am exploring a number of different devices like heel straps.