I have not found any changes to the flight model in doing my usual aggressive combat manoeuvres.
Stalls, recoveries, departures, cake and lime wedge all as per usual.
What I have seen is aircraft flip out because AcesHigh isn't updating the aircraft positions fast enough. It isn't the traditional warp were the plane goes off 50 or 100 yards from the start point, it stays in its position but the 3D model goes crackers flipping the plane out all over. Anyone watching my stream over the last few days will have seen this "phenomena" at least 5 times.