ok, thank you everyone........I forgot to say, these are on my mountain bike...they are shimano XT 525, and my shoes are the sidi dominator mtb shoes...Ihave the same pedals on my road bike, and they seem to release just fine, same shoes too...its the technique I suck at, when mountain biking. It all seems to happen so fast, I don't even have time to think about twisting to get out, and I'm on the ground