I've posted before that you have to turn down the SSS in the skin shader when using IDL. And if you were doubling up on the GC, that would cause a glow, too.

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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)