AF330 - a couple of clarifications
AF330 - seems you are close. A couple of points about your last paragraph on in-air operation:
1. Lateral stick commands roll rate. The appropriate amount of roll control surface deployment will be produced to give the commanded roll rate, not roll angle. With the stick centered, the control law commands zero roll rate - essentially bank angle hold.
2. You reference using the right surfaces to give precise control. It is more a matter of the amount of surface rather than changing the mix of surfaces. In the roll axis, if only a small amount of command is needed, that will be accomplished with ailerons alone. If more control power is needed the spoilers will also be deployed.
It is good to have these discussions as I think all pilots flying airplanes with maneuver demand control systems benefit from fully understanding the basics of how this is achieved. Remember the physics and keep control power limitations in mind!