I went from SPD's to Speedplay Frogs (upon the recommondations for many gals here). I use a Specialized mtn shoe but ride a roadbike. I there is no tention what so ever to unclip, just turn the heel out and lift. However, they do not unclip when your not suppose to. It is hard to explain, (anyone else chime in that uses frogs), but they are so easy to use.

I always have one foot clipped in (my left) and always clip my right foot in while pedaling. It just slides right in. Like I said they are just so easy to use. I will add, that I practiced on a trainer and at this time of year it what I solely use. Every so often I will practice clipping and unclipping really fast just to know that I can do it should I need to. Sort of a confidence builder.

Just my two cents, hope it helps.

~ JoAnn