> Quote - These are the nodes that I changed. > > > This change should make the render look more similar between gamma corrected and uncorrected renders.

Okay.  I didn't have the 0.4 setting.  Making that change, the result is no longer "burned out", but it is still far from correct.

Part of my trouble may be that I am multi-tasking my greyscale bump map, to provide both displacement and color.  But varying the settings on the one map without introducing a second doesn't seem to suggest that this one point is the cause of the striking dissimilarity between these results and the original shader.

Is this now in a state where I should theoretically be able to "eyeball" my way back to the desired effect with the shader?  If so, how do I need to approach that?  If not, eh, why? 

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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.