RE: Sheeting Foam wings
This what I do with a AJ/2 Q/40 wing
Make up my sheets and get them ready to place fiberglass on them. I use unie Carbon 1" on bottom. And a 5: 2oz glass over the TE, And last a full layer of 3/4zo glass to control the amount of resin I place on the wood.
This way I can really take off extra resin, I leave just the right amount of resin to wet the 3/4oz glass. In the top of the core I use .021"x.5"x16" carbon lam, vertical in the foam as my spar. Close and bag.