ORIGINAL: XJet
If you've got coupling in knife-edge flight then learn how to trim your plane better (reflex or camber the ailerons to reduce the effect -- experiment with your CG) or, if all that fails, just get a better plane or learn to fly it on the sticks.
Mixes are a crutch -- learn to walk without them and you'll be a much better pilot.
There is a new thing out there... it's called evolution
Mixes are for reducing workload, and making your flying even better, maneuvers more precise. Of course, if you have no intentions doing so - by all means leave the mixes off...
...like driving a car with a steering that needs aligment, but hey.. "I can just correct it by turning the steering wheel an inch to the left - makes me a much better driver anyway"
Sorry, you hit a hobby horse of mine
