Thanks, everyone.  :laugh:

I'm taking notes, here.

• Lighting is too strong for GC
• Optimal GC requires a closed environment; use BB's envirosphere-thingy
• GC should be 2.2 for EITHER materials OR render options, but not both; one or the other should be at 1.0
• Grey maps (bump, trans, etc) should be at GC 1.0

To answer some questions (or try to :lol:).

• The Batgirl character is available on my Antonia site, but the one pictured above is halfway updated for P9/PPro2012.  A fully updated version will be posted some time after Antonia-WM is available.
• I've always had a tendency to overlight scenes, I think, and my lights are definitely not optimized for GC (or realism/verism in general, I suspect).  I'll try to apply the suggestions given above (thank you!).
• I have IDL, IBL, and AO enabled, above.  I guess they aren't all needed, with GC?
• The suit and hair shaders are definitely not optimized for GC, and that leads into one of my main problems, about which I'll expound below.  :laugh:

The attached shows the hair shader.  As shown, the greyscale bump/displacement map also functions as the color map for the hair, after being run through various color nodes.  I have no idea how to replicate a similar effect for GC compatibility.  BB's satin shader may show the way, with its built-in node-driven GC, but I can't sort out what he's doing, to try to adapt the process for my needs.

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Cage can be an opinionated jerk who posts without thinking.  He apologizes for this.  He's honestly not trying to be a turkeyhead.

Cage had some freebies, compatible with Poser 11 and below.  His Python scripts were saved at archive.org, along with the rest of the Morphography site, where they were hosted.