All of that pre done stuff is great ! the only drawback is if you wanted to modify to a bigger engine the pre drilled holes will not line up for say a 60 size two stroke. You have to use what is specified. So I decided to go with the Saito 82 for power. Also had planned to use robart control horns, and I'm not too comfortable with pre hinged alerons.......Don't get me wrong! I don't mean to sound like I don't appreciate all the prefab , It's a beautiful plane and in only a few hours of work yesterday I've got a plane that is 95% complete ! Hangar 9 is the shiznad !

Ray