If your CG is correct...then an elevator/rudder mix will work.....Leave it on all the time...in other words don't make a knife switch on your transmitter....you'll forget to turn it on and will be chasing your airplane again.

If you mix rudder with elevator you will never know it in the rest of your flight modes.....I didn't believe it either...but I mixed a couple of weeks ago and it is great..,.,

Good Luck

PS It's hard to explain...but I always preached fly the airplane with your thumbs...but some airplanes need a mix and or expo.....so I have lived and learned and can now roll my Python add rudder and fly a straight knife edge