i have to get used to my trackir as well, and occasionally ill have to unplug it while fighting (especially when i move my head close to screen to compensate bad sight ^^)
at first you might want to get rid of the leaning and zooming function in trackir, and get used to it with plain look around functionality ...
(and try out the vehicles while you have the @headrangeplus enabled

)
i tried multiple profiles that were handed to me from different 3cb individuals, and wow, everyone felt completely different.
so its probably a good thing to test diffrent profiles and than fine tune the one you liked the most.
iam not at home, so ill can only share you the one of dslyecxi :
http://dslyecxi.com/files/trackir_profi ... lyecxi.xml