Hi there Guys Im new on this page and I want to show you my first model kit builded by me,, its a Great Planes .40 Piper Cub J3, Im using a .65 golden night saito engine on it, never tried a 4stroke before and Im not sure which prop size to use yet, some people told me that I dont need much on this plane because it floats on the air, what do you guys think? Thanks for looking.