Doubt this will even be heard above the noise, but here I go: I rode clipless for many years, and sort of got tired of them, and the hassles. Then I had a bad crash, at low speed, because I was clipped. After that I decided to give up clipless completely and just ride good touring platforms. And I found I enjoyed cycling even more without the hassle of clipless, and that any increase in efficiency that came from being clipped in was simply not noticeable to me.