I "pasturized" my ARF PREDATOR by removing the gear and running the engine up right. Toothpicks will help somewhat, but the real fix is to wrap the outside of the firewall and forward fuselage with resin and cloth, and to add pine blocks under the wing hold down blocks. I had to scrape away the excess hot glue to work in the extra wing hold down wood. It is a nice plane once you get it sorted out, flys so smooth, it's almost boring.