Speaking of GC... this is going to make a MASSIVE difference in how I produce my shaders in the future. Initially, I was distributing a GC version with a fairly elaborate pdf explaining how to install Parmatic and manage GC using that... and support nightmares ensued, solely because no one spent any time reading the dad-blamed pdf!
I mean, the pdf had pictures and everything, with circles and arrows pointing to things, explaining what things were. Still there were dramas.

So, now I've resorted to creating two folders:
--Poser 5-6-7-8
--Poser Pro
Both have exactly the same shader: same everything, except GVal is set to 1 for Poser Pro.

This solution is far more elegant and less of a space hog. Thank you.

Monterey/Mint21.x/Win10 - Blender3.x - PP11.3(cm) - Musescore3.6.2

Wir sind gewohnt, daß die Menschen verhöhnen was sie nicht verstehen
[it is clear that humans have contempt for that which they do not understand] 

Metaphor of Chooks