I haven't done clipless, so I can't say for sure. I like the half-clips 'cause I can wear any old shoe and still jump on my bike. But I recently acquired a pair of Exustar mtb shoes from a fellow TE-er, and I've found that it's the stiff sole from a cycling shoe that makes all the difference as far as extra power in my pedal stroke. (There are no cleats installed on the shoes, so I just use 'em with my regular pedals & half-clips.)

