The old Jedi Leadout offset trick …

Sweeping the leadouts back does indeed increase line tension. It only does this under 45 degrees. As soon as you pull into a wingover, the plane loses line tension up high due to losing speed and being yawed out. Speed is what keeps line tension. You want to sweep your leadouts as far forward as you can to attain line tension in level flight. If your just a roundy round flyer with a occasional loop, this is a non issue. If you want to fly the plane like you stole it, don't keep the leadouts swept back too far. This goes in hand with rudder offset. It's absolutely not necessary. It doesn't allow the plane to fly tangent to the circle to attain the needed speed to maintain proper line tension. Rudder offset isn't going to save a plane that loses line tension. Many add engine offset, rudder offset and sweep the leadouts rearward. You now have a plane that flies like a turd and loses line tension when you try to fly overhead maneuvers.