ORIGINAL: Gray Beard
None at all. LN is completely correct, you learn to fly the plane with your own control inputs. After you learn to fly without thinking it becomes second nature when you turn. I have added the mix to one plane, a Giant Scale Bipe I flew at IMAA shows and had it set on a switch. After take off I would flip the switch and just fly the plane with aileron and elevator for those smooth scale turns. Most the time I forgot to flip the switch so it really didn't mater. It was something I had in case of nerves when flying in front of thousands of people. I discovered that didn't bother me either so the mix has never been used again.
Learn to fly the plane first then start thinking mixes.
How do you give it rudder after the plane is banked and the ailerons are back to neutral? Rudder mix should be used only on planes which cannot have enough aileron differential. But it does not negate the requirement for a small amount of rudder to prevent it from slipping in a turn.