Hey man, here's what I did step by step:
1: take out the PERS box (it's only barely superglued in).
2: take out the PERS themselves (see pic above).
3: Shave down the PERS box, especially the chin section. I shaved mine back with a really sharp scalpel. The more you take off the smaller it is and the more room you have to push the soft face sculpt around.
4: I gently shaved off the inside of the eyelids with the too of the scalpel, from the back. It's actually easy enough, but you need a sharp scalpel blade.
5: Then I shaved out the inside of the face itself, this is very soft and easy to do.
6: Heat the face with a hairdryer, it becomes like rubber very easily and is quite malleable. Dip into cold water to set it.
The difference really is amazing, here are some WIP painting pics. The iPhone doesn't really do it justice, makes all the colors go too bright and burn out. I will have my camera back tomorrow and try to take some better pics..
This is where I started a few hours ago (note the eyes and shape/structure of face):
And this is where I leave it for today!: