@Luke Scull, I found another graphical anomaly. Kinnuki's unique helm (which can't be removed) casts some pretty bizarre ray-shaped shadows, especially from indoor light sources:
That looks like a mesh problem, I've seen it on some other mod content. Until Luke gets around to it, just use
CCOHEE to target the companion and switch the head or helmet to a different model.
One'd think @Gargaune had made a modding guide or something
I don't use NIT myself, haven't felt the need yet, and I don't have that many mods to write a guide on. The only absolute must-haves I've got are the aforementioned CCOHEE and the
NUI Spell Widget. There's also the
OHS Henchman System for full party creation, but that's a more involved affair, and a multiclass scroll fix I manually swiped from the Community Patch, the rest are just minor knick-knacks.
If you're using the Override folder, though, I strongly suggest you swap to
using Patch Haks instead. It's easy enough and will save you a lot of headaches in the long run, when your Override would otherwise become cluttered.
P.S. Not a mod, but don't forget to enable Player Party Controls. It's under Multiplayer -> Server -> Advanced, but yes, that means singleplayer too.