Good thread - lots of great postings - keep it up.

Face_off did produce the Daz V4 shaders - he told me himself in a Rendo site mail. The technique he used was actually one that I posted - using the Diffuse node to drive the SSS effect produced by color ramp or blend or Cosine or lots of things - all are the basic same idea of how to approximate the redder areas without using the actual light coordinates. The RSS and similar scripts by face_off all use the light coordinates to produce more accurate SSS.

As I've done in many experiments, you can get close to correct SSS with tricks as he did with the V4 shader. However, certain lighting situations always blow up - for example if you're using very even and bright lighting from an IBL.

My latest Ultra Basic shader (was linked by a couple other people) shows how I found a way to reduce the tricks to the smallest possible number of nodes. And it actually blows up less than many of the other versions I've posted, including the way the V4 shader works.

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Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)