I've been trying everything I can think of to get Injection to work.  The promo shots are beautiful.  But M4 face looks like he's got a lightbulb (one that lit, too) inside his mouth.  The little icons say to turn down specularity, but how much?  I've got the shadows on all my lights set to ray-traced, so that's done.  But I can't the red mouth and nose area to look normal.  If anybody has any suggestions about how to work with Interjection, I'd love to hear them.