The other thing I was going to mention is check if there will be enough room next to the servo(you may have to trim a small notch for the wire) for the wire to come up out of when the wing is together so it isn't pinched between the wing and the servo. Also when everything is together and the servo tray is mounted when you go to actually put that servo in there its going to seem snug,just work it in and take your time it will fit. </p>