All the warbird guys I've ever met have turned their rudder off as soon as they get in the air, sometimes even after they get into takeoff position on the runway. If you like to turn it off when you get in position to takeoff be sure to angle the plane to the right about 20 degrees so you can offset the left turning tendances. I know this may sound crazy but believe me it works. When you don't buy arfs and spend all your time building a warbird it's tough to learn how to use a "rudder". Don't knock it till you try it.