I'm a little confused about yoyo styles...

  1. I've seen some "yoyo" peep toe heels on a few websites (neiman, mytheresa.com(sp?)) that have sculpted heels. How come they look exactly like a pair plain ol' peep-toe pumps? I understand that yoyos w/ straight heels look completely different, but I am having a hard time seeing the difference b/w peep-toe pumps & yoyos w/ sculpted heels.
    I just want some clarification in case I have to phone-order the yoyo pumps (ah, yes, the coveted nude pair...! and they're next on my list!) I don't want confusion on either side.
    TIA.