Servo tray pre-fit and optional Ballast tube in place. Keep the elevator servo far enough from the side to allow the servo horn and pushrod to have some room. The switch is located behind the elevator servo.

Note: If you choose to run 2 servos for the v tail each servo arm will be pointed to the outside side of the fuse and the pushrods ran tight along the fuse side for the entire length. This ballast tube would have to be installed in a different position if I ran 2 elevator servos. There is room under the wing for ballast installation if you run 2 elevator servos Just slide in the lead ballast and bolt it to the fuse floor under the CG.