I've decided to take the leap to clipless. Got the beautiful SIDI shoes, and Shimano pd-r540 pedals....those were the first pedals. I have a very small foot - size 4.5 - 5 and I can't kick out of the pedal. My husband thinks it's because I have a small foot? however, I think it's just that I don't have the right pedal. I've tried a few other Shimanos, and even when set on the easiest tension I have to go through contortions to kick off the pedal. I've been riding quite some time so I do have some leg muscles - so what's up with this? Anyone else have this problem? Any really easy release pedals? I've done some research and found some LOOK easy pedals, but I'd be just guessing. Anyone with experience with this problem? thanks! D.