I have a Aeroscout S 2 1.1m with the DSX. I'm reading pg. 16 of the manual and I'm confused about when to manually adjust trimming. The instructions state in flight I can adjust trimming depending on the aircraft performance which makes sense to me but then it says I should manually adjust the trim after the flight to "re-center the servos". In my mind this does make sense because when I fly again wouldn't the radio remember my trim settings but since I've manually adjusted it, the plan will then overcompensate. Am I wrong in that the radio doesn't remember trim settings every time I turn it on and off?

Does anyone know is it possible to put it into experienced mode on the ground and adjust the trim? I have a fear of experienced mode because the last time I did it in the air I lost control and crash landed. I think it would be easier now to adjust on ground before going up.