The only reason I'm thinking Nitroplanes GeeBee is because of the increased wing span and lighter wing loading .I realize that their Planes are inferior especially the glue they use seems bogus. I bought one of thier Macchi 200 kits and the wing doesn't even have washout built in so I'd have to build another whole wing .I've also contemplated doing a non-scale wing for it , increase the wingspan about 6 inches and fly the 170 in that .