The mia shader allows for accurate BRDF. You need to plug the sss shader into the additional color slot of the mia shader. Just keep in mind the whole idea of scale and how the scatter is tied to it. The reason the color is "blown out" is because the mia shader needs to have its diffuse set to 0 otherwise it is doubling. The sss also works much better in a linear setting. Hope that helps....
Last edited by Chavfister; 09-02-2013 at 04:07 PM.