I don't quite understand how the Power Grips work? I'm quite visual, and so I need to see pictures or have it explained before I can understand. Do the Power Grips give you the ability to pull up on the pedal? My MTB pedals grip my shoes just fine, but I can't pull up, of course.

I still need to hold a shoe and a clipless pedal in my hand so I can understand that, too. But if I can get Power Grips to do the same thing, I can move up to clipless later.

Thanks!
Karen