Now that BB is on board, things are really going to get interesting.  As a matter of information, I actually threw this node combination into a VSS prop for easier application to all body parts.  I, also, switched to Miki 2 for testing purposes.  Currently using the Bandida skin texture which only has 2 body parts.  Shedofjoy, you may want to pay a little attention to the bump values while testing.  I have been using a 1 IBL, 1 infinity, and 1 spot light system for my renders and I am seeing artifacts in some crease areas of the skin texture.  A heavy application of mud would not reveal the anomolies because they are hidden.  But when you ease the mud application quite a bit, they begin to show up.  I remedied the issue by decreasing the bump value.  Currently, PoserPro is set to a Display unit = feet.  When I get a chance, I will reset it to centimeters and retry your values to see if I still detect it.  You have done an awesome job.  And keep up the good work.