You don't want to be all wide open like a bunker shot, but Pelz would recommend a flared lead foot, which is where I got most of my short game inspiration.
Hawk beat me to it, but yes slightly open, but no where near as open as a bunker shot. One thing is once you get all the 'mechanics' out of the way, just feel your way through the shot. concentrate on the acceleration part and it will fall into place. At least it did for me.