Kev = Git
I'd argue that I'm not even remotely Guinea Pig like. Perhaps I'd even go so far to state that in terms on rodentesque features I am considerably lacking.
But yeah I do have a TrackIR Pro3. It's crap. used it for about 3 weeks, hated it in GTR (not necessarily the TrackIR's fault I admit), LFS and various flying sims. Meh. So I bought the Vector Expansion. And now it's just a crap but I can wriggle my view in more pointless ways. Sorry, no like. It's up for sale actually - TrackIR3, Vector Expansion and the hat thing (that my family call an IQ Reducer) that you can get too.