So... the universe is conspiring to kill me again today; which prevents me from sleeping. As such, I have continued my modding of Skyrim, while I decide what to do with FNV -- and whether to bother telling anyone when I do it.
Firstly, I got Em-Jole working:
Turns out it was a voice issue. I had left it set to copy the original's, and the original Mjoll uses a voice that isn't valid for companions. Shame, as none of the valid ones have that accent that is so a part of her character. A switch of voices later, and she works fine.
You can see there the Grimsever Clone I have her start with; created mainly because I was bored that night.
While tinkering deep in my textures folder, I found that I had indeed installed an "improved" lip tintmask set. Deleted that, and lo' and behold! Lip colorations reappeared on NPCs. Annoyingly, I had to re-export all the facegen texture sets to get the NPCs to show the new colored lips in-game -- apparently the texture generated by the SuCK is exactly what you see in the preview window, regardless of what the actual settings are -- but once that was done, it was a marked improvement:
I had to take the extra of Maeva. I just love those sidelong glances she's always giving me. I can just hear her...
"What the hell are you doing over there...?"
The base game's lip mask isn't as sharp or precisely rendered as the replacer I had installed... but it works; which is more than I can say for the one I deleted.
Also reworked the non-clone 'lesser' companions a bit. Farun got red lipstick, Katheryn got black. Skadi got a lighter red intended to look natural and not cosmetic; and Raven similarly got a medium-blue that looked like a natural lip coloring to go with her skin tone.
No screenshots at the moment, as they were naked at the time (set to no default outfit to keep them from refusing to equip what I give them) and I was too lazy to have them follow me to get armor to equip for SFW screens. I'll get around to it eventually.