Thanks combatpigg.
I'm sure you have instilled a lot of compentency in your students with your approach to the skill of RC flight.
My simple approach is to add(1) single element to the RC experience and that is to be able to have and maintain acrusing speedjust by simply pulling back on the throttle.The pilot still has 100% control of the plane but now has a crusing speed to master.

Thanks again for your input.