Check out my signature, download my film. It was shot using TrackIR Pro 4.
TIR is great. It's a more realistic viewing system, although sometimes it can give a you disadvantage. If you are looking to your rear right, you have to spin your head completely around to the left to look rear left. I've lost my direct 6 view in my typhoon, so now, I just look to my 5 or 7 o'clock and then use rudder to slide my tail side to side to check my direct 6.
When in a ground vehicle, TIR should be disabled with a hotkey, temporarily, when using the MAIN gun.
Seems like more and more are buying the Track IR.
http://www.naturalpoint.comThey have films of their product on their website, for those curious about what it looks like and how to use it.
Edited for grammer.
