Thought this would be of some use to you.
https://www.thegnomonworkshop.com/tutorials.html
Theres a free downloadable tutorial on subsurface scattering on the above link. Goes into detail about all the controls available.
I know its not focusing on SSS skin but the tutorial does state that it will be making another vid purely for the skin soon.
What We Do In Life...Echoes In Eternity!!!