Tester78,
Are you talking about control surface movement in pitch i.e. trimmable horizontal stabiliser (THS) in which case, yes I agree. Since we are talking about crosswinds, I was talking more about roll to which I don't think the constant trajectory applies? Certainly in my experience a wing coming up in a gust or thermal doesn't stay in the position the gust put it and doesn't go back to where it was either!
Cough,
Thanks - hadn't realised that.