Section 11 work on the Elevators attach to the Horizontal Stab. The plans say to use Duct Tape to secure the elevators in the "trail" position. I found that tape wasn't stable enough and elected to use wood hand screw clamps. It was much more stable. After I filed the bushing to fit in the center bearing the plans call for using a #30 drill to make a pilot hole. It seemed to allow to much play inside the bushing and I elected to used a #33 drill to eliminate the wobble. Now I want to verify the center bearing hole alignment with the holes I drilled before I move on to the holes for the push rod.