I don't know anything about VSS or the maths involved - I am one of those that BB was trying to help from the outset, a click from the props section of Poser (P7 SR3). I don't know if these pics are of any use to you, but i wanted to do them 'straight out of the box', Poser default lights etc. Texture is Diva. I went to BB's VVS home page and downloaded the 'free preview release 1.

I didn't download the PR2 prop as I don't understand what to do with it. I'm sorry for being stupid, but you did say part of your audience was those who didn't undersand shaders sufficiently to go to the materials room. And I guess if I don't know what to do with the prop, others may not understand either!