RE: pull -pull installation
Not that I've done millions of these, but once or twice I've had to measure and mark where the exit point should be. I install the servo and control horn (or in your case a tiller arm). Make a mark on the outside of the fuse indicating the height (vertical position) of the servo arm, then take a straight edge from that point to the control horn and draw a line along the path. Then look down on the servo and position one end of the ruler above the servo arm hole and the other against the control horn and make another mark on the fuse where the ruler crosses the wall of the fuse. then draw a line from that mark perpendicular to the first one and X marks the spot.
Peter