skylarkmk1 The thing that stopped me from doing that is the windshield shape. The Supercub has a squared off top as compared to the J3's more pinched off shape. That requires a different plastic windshield which I don't want to tackle in a scrach-build...molds, ovens and all... If an aftermarket windshield could be found and adapted to the Sig kit that would be a different solution. Reshaping the balsa wing areas to fit a different windshield would not be as hard as you would be working with wood and not plastic.