I wouldn't call this derailed at all; this is all discussing ways to improve the input controls... and I'm fairly accustomed to tweaking around with this stuff, so this makes good reading :)
I have a set of pedals also so the rudder axis is covered (I actually can't stand the handle twist axis, it makes the joystick feel loose and hard to control precisely), and so put everything on the controller over to "real life" control mappings with the exception of unmapping the mic hat and using it as my POV hat. Spent every available moment since running through the training missions. The HOTAS controls are quite cool, quite a kick locking onto a moving target with the LITENING and dropping guided bombs on it's arse.
It's a little bit annoying that the freelook modifier (alt+c) can't be natively bound to any mouse button, and I can see what you mean about needing to use it for cockpit controls - however having the full HOTAS setup I'm yet to see anything I can't access through the HOTAS menus that can't be set up pre-flight, and I just made a macro for one of my side mouse buttons to hit the key combo... so that solves my immediate problems. I'm considering the TIR setup, however I was wondering about latency, and other people have mentioned that it is a noticeable thing which requires some software smoothing to perfect... how much latency are we talking here? I'm a big hater of any sort of input lag; being a life-long gaming addict this is my checkpoint for a system upgrade actually - the second I notice input lag on standard graphical detail settings in new games. :)
Unrelated question, the training missions keep referencing a flight manual... Is there any such thing available for download with the Steam version of the game? Alternatively is it freely available on the net?