Working from my experiance of the horizontal stab hinge, I backed off the trim hinge just a little. Basically lined it up with the interior groove cut in the hinge. Works great with no rubbing so no filing on the elevator skin. Had to file a little bit on the inner side of the Elevator Cutout Channel to get it to fit properly in the inner elevator rib. Just a schmidge. Cut the trim actuator rod (threaded) to length, (about 89mm or so) to properly fit the midpoint of the trim actuator to center the trim trab. So that I wouldn't have issues with screwing up threading, I just used a file to 'cut' the bolt.