Quote - You mean, you weren't feeding 1 into the multiplication? Oh my.  Well, it was an interesting diversion, and might have sparked my interest in looking into DS. So it wasn't too bad.

That's correct. I was feeding Sine of 1 (float). :blushing: So do I feel the priceless ass! But, undaunted, I shall henceforth be infinitely more careful in publishing my work, both when it appears to work and particularly when it appears not to.

I initially found the over-ride channel-input methodology/behaviour insufferable, but now as I play with it more, this shader system appears to have more redeeming qualities than annoyances. SM and Shader Builder appear to be mostly designed for procedural (vs enhancing image texture) work.That's my take on it so far.

And yes, you can leverage Poser MAT room knowledge, to some degree.

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