yeah , gotta have more info........is it glow or electric, is it painted foam?........if its electric then anything you add will only add weight not strenth, if its glow then you got problems cause there is very little in the way of foam that will stand up to glow power or exhaust unless its really low nitro fuel.........Rog

first flight next week???!!!!! is there no child in you? go out and fly that thing tomorrow.........