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The most important issues to control weight is obviously the wing skins, but as important is the amount of glue. You need just an ultra fine bead of Gorilla glue. Like I said, I used a glue syringe with a very small opening. I applied the glue direct to all ribs and spars like Dave does. If I build another set, I think I can knock off a half oz. or so from each panel now that I know how little glue is needed.</p></span>