Excellent advice MinnFlyer!
I learned on the Junior Falcon, Falcon 56 then Senior Falcon back in the old "kit days" of the late 60's early 70's. The key to rudder and elevator model aircraft is adequate wing dihedral. Wing dihedral can be the seen when you hold one wing half down flat on a board. If the other wing half is off the board at the wing tip you have some dihedral. Anytime you input rudder control in an aircraft with adequate wing dihedral (no ailerons) you cause yaw motion or "side to side" motion. If you were to (in this case) input right rudder to an aircraft with adequate wing dihedral the yaw (nose right) motion causes the left wing to catch the air lifting it up into a right turn. Examples of a present day model aircraft with excellent rudder control are the Ember or Vapor micro flyers. Your idea of starting out with Falcon 56 is excellent. It would be interesting to find out if this new Falcon 56 ARF has less dihedral than the old rudder/elevator/throttle kit. Usually ailerons become more responsive when dihedral is decreased. I suspect they have decreased the wing dihedral some. I was thinking of getting this new Falcon 56 ARF and converting it to brushless electric, being I remember all those freeze fingers winter days out in Western North Dakota. I don't see CG offering this great little model as an brushless ARF or even offering conversion instructions, which is a bit surpirsing.