Jake is right, single diamond wires, and I never weighed the boat, but I would say around 400 pounds, maybe a lttle less.
Hans has a carbon 5.0 that he has sailed, I think it did not quite meet some form of the F16 rule, and according to the F16 forum it did not perform as well with the hull design. I would still like to have a carbon 5.0, its a good boat.