One thing, though, that I would like to point out (especially after only recently having made the
transition myself) is that the loose naming conventions used in our discussions can be very
confusing to an established AR (Asian Radio) user.
I would recommend taking Mike Shellim's approach to reduce some of the confusion:

Widget(s):
Sticks, switches, buttons, sliders, knobs

Control(s)
What the widget does. Initially, a widget doesn't do anyting - you have to tell the EVO what the
widget will command.

Channel(s)
Servo input signals. The RE9 has nine and the RE12 has twelve.