OK, so I parented a spot to the back of the reflector, so that it could add some subtle shadow to those hairs that will detract from the small blotches.  Only set at 25%, but I think its enough to create a fine shadow that is a little more realistic.

Based on Richardson's reply (thanks!) I ticked the Fresnel, and see what you mean about it being not so dry.  (one on right is Fresnel added)  That does hit the render time though...  :(

I am gonna roll the whole render, and see how it looks.

Thanks for the tips!