The blender is working great, just need to jazz up the freckles map a bit is all.   I've been doing some experimenting to see what sort of freckle effects I can get without altering the base skin tone too much - takes a bit of tweaking but I'm confident it will be worth it.

Only drawback I see to this method is that you'll have to go into the material room to make precise adjustments to the freckle "level", for lack of a better term.  Each of the various body parts with skin can be adjusted up or down with a blender setting (Yes, you can even vary the amount of freckles on here feet.. lol...) - but because this is a shader node I don't know of anyway to hack this into the main CR2 file for a single dial setting on the parameter dials under the body section.

I can include a few mat poses for quick changes, but for precision work you'll still be stuck going into the material room and adjusting the blender setting on any/all appropriate body parts.