The big difference here compared to hardware trim is that hardware trim has no insight into the stat
The big difference here compared to hardware trim is that hardware trim has no insight into the state of the aircraft. You set the trim, which just moves the stick spring center offset, which moves the axis by an equal amount. Whether you later engage AP or not, HW trim does not know and the stick offset will remain until you change or reset it.
With this new TelemFFB implementation, the trim movement of the stick is actually following the trim values as read from the sim (so you'll want to have your trim hats bound in the sim). The gain settings affect how much the physical stick moves in response to the trim value changing, and how much the virtual stick moves in response to the physical stick movement.
When you switch AP on, the elevator axis continues to follow the trim reading from the sim (since thats what APs use to adjust pitch). The aileron/rudder following reads the actual control surface deflection to determine how much to move the physical stick.
With this new TelemFFB implementation, the trim movement of the stick is actually following the trim values as read from the sim (so you'll want to have your trim hats bound in the sim). The gain settings affect how much the physical stick moves in response to the trim value changing, and how much the virtual stick moves in response to the physical stick movement.
When you switch AP on, the elevator axis continues to follow the trim reading from the sim (since thats what APs use to adjust pitch). The aileron/rudder following reads the actual control surface deflection to determine how much to move the physical stick.