Rudder control is one of those things in the old planes, and those things are usually the difference between out-stalling an aircraft to live, or doing it to get the kill. Also, to get in that situation, you kinda need to takeoff, so you need something as your anti-torque, heh. You probably get the point by now; while I'm sure it's perfectly plausible to "trim" your rudder for takeoff in some way, it's a competitive control surface for an aircraft of the era.