RE: Ailerons VS rudder
IMHO using the a ailerons only in turns is a bad habit. Most advanced models- like scale love rudder for the turns. The rudder is not just for ground control. Get in the habit in using your rudder in flight, you will become a better pilot if you do.
I once did some of my turns in a full scale plane by aileron and elevator and my instructor yelled at me. He said " This ain't a radio controlled plane!" I got in the habit ever since using both aileron, rudder and elevator on all my turns for both R/C and full size ever since then.
Pete