Are you using Poser 10 or Pro 2014?

I am having repeated problems with unrendered buckets in scenes that include dynamic hair. I believe there is a service release in the works that will address issues with the rendering of dynamic hair. So I have left off experimenting with dynamic hair until that problem is sorted out, because I am not sure how long it should be taking to render.

That being said, I like the distribution of the reflection on this hair, but the colour still seems to be a little flat. Your shader looks easily adjustable to deal with that though.

Poser 11 Pro, Windows 10

Auxiliary Apps: Blender 2.79, Vue Complete 2016, Genetica 4 Pro, Gliftex 11 Pro, CorelDraw Suite X6, Comic Life 2, Project Dogwaffle Howler 8, Stitch Witch