Alright, more testing. Used Penny, as you have been doing. Interesting results. In P5, I was getting the exact thing you were. So I played around with the skin node, and got it looking slightly better. But just for fun, I opened the PZ3 in ProPack, and rendered there. That's how it should look. So obviously P5 is doing something odd with the lights. Hrm. On the left is Penny Rendered in ProPack, and on the right is a P5 Render using the skin node.