On my road bike that has toe clips/straps I keep the straps loose when not riding. When I put my foot in the pedal I reach down and pull the straps nice and tight. When I'm done riding or have to stop for some reason, I reach down and loosen the strap to get my foot out. My point is this entire procedure seems like it would be more difficult when I can't stop pedaling, which is why I went the route of platforms and retrogression straps. If you don't tighten/loosen your toe clips/straps when you insert or remove your foot then you obviously won't have this potential problem.