I've had a couple of airplanes where, because of the wing structure, it was not easy to make adjustable leadouts. On these airplanes I attempted to compensate by making the rudder adjustable. Having done this, I fiddled with the rudder a bit to see what it does. If you put in rudder offset you can get more line tension but the airplane will not fly as well. It is generally known that airplanes which you want to maneuver will fly best when you are looking right straight down the wing, i e, the airplane is flying tangent to the circle. Oddly enough, if you have the leadouts too far back, or put in too much rudder offset, and induce yaw, the airplane will loose tension when you fly high. If you make things adjustable, you can fiddle with them to make the airplane fly better, or fly worse, and learn a lot.

Jim