CAP,
Track IR set up Tips.
I find in the AH Options>preferences>View menu, uncheck everything EXCEPT "TrackIr object relative move". Selecting this helps with looking backwards. How? because it reverses the action of the fore-aft, and side-to-side axes when your virtual head is looking backwards.
Without the box checked: you turn to look behind you and if the seat is too close, you move your [real] head [towards the monitor] and your virtual head gets closer to the seat cushion.
With the Box Check: you turn to look behind you and if the seat is too close, you move your [real] head [towards the monitor] and your virtual head gets closer to the gun sight, Farther from the back of the seat. I find this more intuitive because your brain thinks it needs to move away from the back of you chair to move away from the back of your virtual seat in the game.
Other tipsTips :
Camera seees like a cone that gets wide the farther you get away from it. Have to camera at least an arms length away from you head. This will prevent the "flips upside down" which occurs because one of the LED (or reflectors) moves out of the cone of view. The closer you are the camera, the less room you have to move your head before you leave the camera field of view.
Symetry is not always best when setting up the scaling of the TRackIR axies. For vertical axis head movement, I have "up"or 'positive side of the curve set fairly steeply, but unchecking the 'Mirror' box [in the TrackIR software] and setting the down much flatter will prevent your view from sinking into the dash board as you move forward in the cockpit. This is key when deflection shooting because you want to move toward the gunsight, and up to see as far over the front of the plane as possible, and off to one side. Setting the negative or"down" curve to be very flat prevents the artificial downward movement that can be caused by the geometry of the camera being higher than the LEDs [or clips]. If you make it too flat, you may have trouble looking low enough to see all of your gauges, so leave enough to do that comfortably.