Just a quick note. When I recently assembled a 4 * arf, I attempted to use the ez connectors on the servo end (rudder and elevator) and the height off of the servo with the connector kept the wing from seeding properly because it kept hitting the torque rods (Don, the 40 arf stock is single servo with torque rods). I ended up using clevises on the servo end as well. Also, I replaced the stock nylon rods for the rudder and elevator with sullivan golden rods based on some stuff I read here regarding the plane getting out of trim with drastic temp changes. I have noticed that I've had to trim mine out on several occasions even with the golden rods, so if I had to do it again I might go a different route. I did use the stock nylon rod for the throttle and haven't had any issue with it.