By the WAY, I'm having way too much fun with this! I've shown a number of people - other character designers - the difference between not using shaders or the default stuff that comes with V4 hi-res and VSS and they all come away gob-smacked. There is no question: this is the concept to learn.
So, I sit and study those nodes. Follow the channel thread (I'm making up terms that is should be learning the proper terminology for) but when I go over to CastlePoser for instruction, I find myself unceremoniously dumped in the moat: get your head around this!
www.castleposer.co.uk/articles/skin_basics.html
Nevertheless, whether I can get my head around it or not - and believe me, it isn't for lack of trying - the results of running it are very, very compelling.

I did mess with the turbulence gain for when I do close-ups. Was that the right one to mess with?

Monterey/Mint21.x/Win10 - Blender3.x - PP11.3(cm) - Musescore3.6.2

Wir sind gewohnt, daß die Menschen verhöhnen was sie nicht verstehen
[it is clear that humans have contempt for that which they do not understand] 

Metaphor of Chooks