Epoxied my engine firewall wedge to the air-frame. It gives me about 1.5 deg. down and 1.5 deg. right thrust. Had to take a jigsaw and cut a rectangular hole in the firewall to clear the carb. Epoxied the stab and rudder on, it was really easy. Also used their flex hinges as they are easy. These hinges are not the greatest for giants but if you keep and eye on them you can catch breakage. Leo