Poser Pro 2010 has give me some of the best renders I would never thought possible in Poser.  Both IDL and GC have been welcome additions and I use them almost always when I want as realistic a render as possible.   That said, BB's vss skin shader settings are superior to any other skin shaders I've worked with.   Here are some tips I find useful.

First of all, after you bring in your VSS prop ( I assume you're using VSS_PR3_No_AO) go to the material room and select the prop.  Go to the Template Skin material and on your left you'll see a series of nodes all beginning with PM.  These are the nodes that, for the most part, you'll be adjusting.  You will always want to change PM:Gamma to 1.000 when you use GC in the render settings.  I usually do a test render of the skin to see what the bump will come out like but sometimes I change PM:Bump to 0.015 from the default 0.03 (especially with the DAZ elite textures)  This will vary so try it out first before you make a full-blown scene. You can also adjust the PM:Shine to something stronger and enhance it with a specular only light.  For the examples I'll post below I had it set to 0.35.
Finally,scroll down and change PM:SSS to 0.3 from the default 1.000 otherwise you'll get more of a reddish tint.  Of course you're free to play with these settings and see what works best for you.

When I have everything in my scene set up I go to Scripts/MaterialMods/ChangeGamma.  Input 1 and click ok.  In the drop down menu select 'all props and figures' hit ok, and then select all of the above and ok again.  This will ensure GC does not wreak havoc on these maps.  Another step I always save for the end is disabling Texture filtering.   I find that I get sharper renders that way.  SVDL has a nifty script here in FreeStuff http://www.renderosity.com/mod/freestuff/index.php?user_id=99327  It's the Poser 7 Texture Filtering Utility but which also works in PP2010. Apply as follows:  Scripts/SVDL/Texture Filter.  Quality Setting: Off Apply To: Entire Scene.  Next, and this is important, I choose any hair figure or prop and rerun the script this time at Quality Setting: Quality Apply To: Current Prop or Current Figure depending on what the hair is.  Do this for any hair you have.

As for lights, although the lights supplied for vss are a good starting point I find it's best to make your own.  Using the environment sphere instead and one infinite light for shadows is a simple yet effective way to start experimenting.   I also suggest adding a specular only light to bring out more details.  You can set up a light in the material room as specular only.  Make a light, select it and go into the Material room.  From the Wacros on your right Choose "Set Up Light Style".

Render settings are also important and make sure you use the D3D Firefly render python script found in Scripts/Partners/D3D.
I can't attach more than one image so bear with me.  First are my regular settings and then the Firefly render settings via the python script.  Following that is the raw render.  I used BB's environment sphere with one of Philo's sky panoramas, an infinte light as the sun set at .7 Shadow strength and at 80% intensity.  A point light as a rim light set at 125% intensity (no shadows) and a Specular light at 50% intensity.

The render to 30 min with PP2010 running in Low Priority as I surfed, listened to music and browsed my Runtimes with P3DO Explorer, so I'm not complaining about render times :)
I can't attach more than one image so bear with me.  First are my regular settings and then the Firefly render settings via the python script.  Following that is the raw render.