Greg, that is the idea. The issue is the black "control attachment" parts are the problem. Because of the taper on the Excelleron (and many other airplanes)'s elevators, if you use pull pull, the take off point gets too far behind the hinge line. THis creates problems in varying tension on the surface, particularly the farther in deflection you get. The perfect setup is to have the clevis take off point EXACTLY over the center of the hinge line.

That's what those nifty long Dubro parts will permit, because they are so long. Dang it.