I tried to faithfully reproduce the bricks to match the Poser nodes functionally. Brick for node. If you look at the preview of brick one and the preview of brick 4, they are different. Functionally identical to the Poser node set, shouldn't they produce the same result, regardless of what colour you pop in there?

I'll do it again, but I'm pretty sure that I used exact the same colour to subtract in the Poser shader as I did in the SM shader (0, 128, 0).

I'll try again and get back to 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