kuroyume0161,
I guess I fail to understand. The thread topic is about the support for Jessi and James. What is that support, in the context of 'rigging' if it is not morphs?

Poses? Will bad rigging make 3rd party poses impossible?

If 'rigging' refers to Poser and how it handles the bones and joints of all figures, Girl or V3 or Jessi, it seems a moot issue in terms of head morphs (which most morphs are, in practice) because the head (unless you count the eyeballs) is a simply a single mesh in every human figure I have seen. That's the point I was trying to make. I don't see that joint-handling - in P6 or in Jessi in particular - will affect people making and selling expressions, facial shapes, etc.

"Although Poser's rigging system (tri-axial independent weighting using twist line, bend angles, SFZ's, and bulges) performs well under minor conditions, under more extreme poses, it breaks."

What are merchants selling products for Jessi and James supposed to do, or not do, about this? Sorry if I am missing something, but I do not see how your comments are on the topic.