in answer to your pm (i am not at 50 posts...so no pm for me...
)
I have ridden with them the last few weeks quite a lot, up hill, down hill, standing and sitting and have not had any issues at all. I imagine that it is possible, but my pedals are set at the lightest tension, always stay in when I am supposed to. I think that if you are using them while doing cyclo-cross or mountain or spin class, then you might have more of an issue, or if you are doing the Danny MacAskill style of riding...
