SWMBO got me the TrackIr3 Pro + Vector support as a Birthday gift, and WOW!!
While using TIR is very natural, I nearly puked after my first few sorties, and I had to take a break..
The next day I fly a few more sorties, while the nauseua isn't so bad, I feel like my eyeballs are going to pop out of my head. TIR made my eyballs do weird things. For instance, when you move your head left (to pan left), you have to move your eyeballs to the right to keep looking at the screen. Consequently I use my eye muscles more than normal now, and for some reason, I get after effects (my eye's feel funny) for several hours after playing.
Today, (after tweaking the TIR settings to get a little more sensitivity so I don't move me head so much) things are much better. No nauseua, but my eye's still feel a little 'odd'
With that said, I absolutly LOVE this product! The immersion factor is intense. The abily to keep a track on a con durring intense ACM is absolutly amazing.
While I'm still a newbie to AH (1.5yrs or so) I am amazed at how well the brain integrates with TIR and AH2. The brain figures out, somehow, where your 'looking', which way the aircraft is oriented, and which way to move the stick, all at the same time, without even having to 'think' about it. It is in a word "stunning"
OH, and one last thing, with the new Cloud model + TIR = Incredible SA! (the clouds are now unique, and seem to really help me keep my orientation)
Anyway, I'm now re-addicted to AH