As I commented in the other thread, overlays and displacement/bumps created in nodes would be disproportionate on a single map ... The head is not in proportion with the body etc. ... but a very interesting approach. Also since my ultimate goal is to make characters for the marketplace this would be counter-productive.  Let me emphasize though that for personal projects this is a wonderful idea!  I don't want to devalue this idea.  The other challenge I have concerning multi-map designs is since they are dis-proportionate to each other I've been seeking a ratio setting of the proportions to establish changes in the size of referenced overlay nodes so that it all comes together in the final render ... all in a form that in the end will work with a marketable character.  But that is another issue.  Right now the mask for the lips is my concern, and I would need that no matter that mapping design it was since I need to alter the texture of the lip separate from the body.  Lots of things to think about.

Boni 

Boni

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"Be Hero to Yourself" -- Peter Tork