Thanks, FoxEgg!
Just revealing what I've learned from a variety of sources, packaged together in one place... I'm really curious if anyone has other methods: The issue of calling one forms PEMs from another form is really fundamental to a VFP application's architecture, since it not only relates to Forms, but ANY objects that you create.
These patterns aren't limited to VFP, either, so it's really an interesting thing to think about and discuss!