I have a Trad Tech Lobo which is an all carbon riser. I love it. The grip is very comfortable, the weight is enough, and finish is very nice.
My only complaint is it seems a bit more noisy to my ears, than my wood Blacktail, Cascade, and Bear risers. However, this could be me not getting the Lobo tuned (Brace Ht) quite right?
Here's a picture from inside my Primos 270 surround view ground blind. By the way, I can hardly stand to be in a solid walled blind after hunting in the 270. I've had coyotes and deer inside of 5 yards while in this blind. I don't feel near as "confined" in these blinds.