Thanks Guys,

I thought it had something to do with making the skin transluscent, but it's been very nice to hear that affirmed by other people!

pjz99 - Thanks for reaffirming my idea that medium to dark complexions really do work better with SSS, and why

When you open the Poser 6 Wacros the button is indeed named "Add Sub Surface Scatter" but the node that is uses is called "Fastscatter."

takezo3001 - Thanks for the link!  I wish I had some results for you, but my figure's complexion is as fair as I could make it, and my lights are pretty intense.  Wven with the slightest SSS she starts Glowing!