Well, what u discovered?
Different movers that causes different problems.
BodyGyro, BodyThrust and BodyPosition, causes some nice effects, and causing problems too…
Or VectorForce and AlignOrientation? or a combination of all? :v
Making a good plane/jet, smooth, stable, fun to ride, its a little complex, specially on how u manage the movement, rotation, speed.
Probably on client will go smoother too, using some RenderStep would make it look smoother I think, theres a lot of things to test.
Hopefully someone could add some ideas on whats the best approach :3