I too need to back up a step or two or three...
"You guys" are adding carbon veil to the skins then putting the tissue on top. Would there be any advantage to putting the carbon on the bottom of the skin next to the foam or rib as the case may be? Could the carbon be pre-glued to the skin and then attached to the ribs on a built up wing?
Thinking out loud here... the carbon being porous could be laid between the skin and foam on a foam core wing. I love the polyurethane glues for skin attachment. The PU glues should foam right through the carbon and bond everything. With the tissue on top this should be a supper strong skin.
Thank you
Ken