I think there have been some changes to the specific Material Room nodes after P12 that have affected the way rendered images appear.  You should thoroughly understand what is going on in the Material Room before tweaking EZSkin, depending on your methodology for approaching Superfly materials and rendering.  I honestly think that there should be an overhaul of the app to accommodate node settings.  For example, despite the fact that you are given options to apply different skin types to the Subsurface Scatter node, there is no actual mechanism to turn it on in EZSkin.  

@Y-Phil: The render with the default Superfly plugin looks much better than the EZ Cycles.  The overblown specular skin does not look natural or realistic.  Some individuals will object because they like that dermal sheen, but take a good look around, unless you bathe in baby oil, no normal individual looks like that.