Hmm. I just realized that I was supposed to make another "Copy Node" for the wings and not attach the new rules to that Copy Template Skin.

But when I clicked on "Add a Copy Node" and named it "Copy Template Wing"  then created my   feather  and  wing   rules, and connected them to the "Copy Template Wing", I get the following error message:

------- VSS -------
Synchronizing WQ_Wings from VSS_Skin_Shader_PR3_1
No rule matches zone BodyFeathers - skipping.
Synchronizing nodes from Template Skin to Preview
No rule matches zone Feathers - skipping.
No rule matches zone MainWing - skipping.
No rule matches zone FeathersWhite - skipping.

-- done --

"It is good to see ourselves as others see us. Try as we may, we are never
able to know ourselves fully as we are, especially the evil side of us.
This we can do only if we are not angry with our critics but will take in good
heart whatever they might have to say." - Ghandi