DH,
I can use TIR to control my head movements in the 3D cockpit, or control the sensor in the 2D cockpit as you would expect the IHHADS to operate.
It requires using the TRACKMAPPER utilitiy to get the TIR to work with a game that does not have native TIR support.
Like I said, it works, but kinda slow. I use it when just scanning or cruising. Not as useful as the TIR is in a supported game like Falcon4, MSFS9, LockOn, IL2, etc.