My Giant P-51 had more throttle than rudder so advancing the throttle too quickly would cause me to run out of rudder. The throttle must be managed on takeoff amazingly just like a real P-51. Imagine that!

You don't want a model that is too easy to fly or it won't need a pilot and it would be boooooriiinggggg!! I don't mean to sound fat headed but I prefer not to have too much mixing and do most of that with the sticks.

I was talking with the late Miles Reed one day ( everyone knew Miles!) and asked him about mixing and coupling and he said that he used absolutely none!