Should I use Saitek SST software or just ingame setting?

[SEE]

The advantages in using SST are that you can use the mode switch to assign different commands to the same button - i.e, mode one = Spitfire or fighters or mode 2 for Bombers - bomb enabling/sight/doors, mode 3 for SP issuing orders, etc.

Secondly, you can use SST to enable the button commands for your headtracking software and as, allready pointed out, use the throttle Mini -Mouse for FOV, etc.