I'm not exactly sure if this is a bug or justmy joystick acting up in ArmA, but it seems that ever since I increased the sensitivity to my mouse, the sensitivity of my joystick has also increased.
If I barely move my joystick, the chopper whips that directon, same goes for the Harrier. Now, I know that people have posted how much they dislike the flight model, but I don't think my problem is with the flight model.
I participated in a coop mission and I was the helicopter pilot. I was above the town or Paraiso and was straffing sectors with enemy with FFAR's. Just trying to hover in place was a royal pain in the neck. The chopper would not stay stable for the life of me. I do know how to fly, and can handle your standard remote control 3D choppers (3D meaning it can fly upside-down as well as rightside-up).
ALSO... the rudder on the choppers seems to be too weak while at cruising speed and way to strong while at a hover.