My understanding was the vibration on the stick was moved to the buffet feature and was a bug the way it was implemented before?
I have experimented with trim force and indeed all the other settings but have failed to get any satisfactory, communicative feel out of it. Certainly nothing approaching the functionality I described about a change of looseness and needing a larger magnitude of input. I have a Microsoft Sidewinder Force Feedback 2, if you or indeed anyone has a screenshot of settings that would reproduce this effect I would be very grateful to see it.
Do you, or anyone, know which API Aces High uses? I'm willing to write some code to experiment with and demonstrate what would be possible, if HTC cannot or is unwilling to prioritise any development in this area.