Completed the autotune on the S800 that used to be notoriously prone to have pitch oscillations after autotune in 3.9.x apparently tune ended and there were no oscillations. There was a wind of about 15/20 Km/h. But I am very happy with the result.
I do noticed that in Cruise the throttle behaves well but the Nano Goblin throttle in Cruise or Auto is just crazy, As reported here: Throttle Oscillation - in Auto Mode