No, I haven't applied a scale yet but I would certainly want to be able to. The scale I'm at is much larger than I would want in Poser, but I'm leaving the import (Poser) and export (the software I'm using to make the models) options at default 100% scale as I work this issue out.

The weird (or just stupid) thing is, I got it to work once but I can't remember how I did it.  In Poser I'm putting in a head and then expression morphs (all objs) that I generate elsewhere. I've got a Poser file that has a head set up the way I need it, but I can't figure out how I did that. That head scales up and down just fine and the morphs work just fine too. Any props I've saved so far go back into scaling kookery when you try to use 'em.