If you can see the highlights in the color map, then it is burned-in specular and it is bad bad bad with scatter. It makes the skin appear to be powdered or diseased.

SSS requires color maps be strictly about the diffuse color of the material. Unlike the old days, the color map is not just "painted" on your mesh - it is used to define how the material distributes light as it bounces around just below the surface. There should not be any other information in there.

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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)