I've got to go with Eric on this one. I prefer to use a blank slate (going into the Hierarchy editor and stripping the P4 figure down to the necessary morphs: the morphs on the default P3 figure MINUS the breast morphs.) and add the morphs one at a time to concentrate on the features as I'm adjusting them. Then, when I have the body parts the way I want them, I spawn MT's for each part and delete all the other morphs (with the exception of the P3 standards). It saves a LOT of hard drive space and memory if you keep the models stripped down, and deleting 174 (or even 99) morphs from a figure takes an awful long time.