Angelouscurity - Poser does not have real subsurface scattering, and Face_off's shaders do not implement it but fake it. Human skin is a very complicated thing. You have white semittransparent skin flakes over red blood vessels. No poser skin shader simulates that. So everything which tries to implement SSS is a fake.

The Fast Scatter Node simulates only a very small part of it. It's just for light behind a person to show on the edges. But that is not the full effect of sss.

A ship in port is safe; but that is not what ships are built for.
Sail out to sea and do new things.
-"Amazing Grace" Hopper

Avatar image of me done by Chidori.