> Quote - ... Yes, that was what I refered to as the shading artifact (terminology failure?). This seems to only occur with the specular on the Poser Surface and the specular node, but not when using any of the othe specular nodes. I'll be avoiding that from now on.

Terminology is o.k. i guess. I do not know if you noticed, but there are additionally two strange spots in the background of your GC2.2 image (see markers above). Those i could not reproduce btw.