If using epoxy, I put some down first just so the glass will have something to stick to. Then epoxy the cloth down by soaking the cloth with epoxy and using a credit card or your finger (in a plastic bag) to "press" it through the weave and onto the surface of the wing.

Remove as much of the epoxy as you can without disturbing the weave in the glass and you will be good to go. If you dont remove the epoxy while its wet, you will have to when its dry and I know I don't have to tell you how hard sanding epoxy is [X(] .

Does this have a wing tube ? Nothing changes, just curious. I wonder if you will need to epoxy the tube in place if it has one ?

Just a thought

CJ