I tried using the HOTAS, but they still have head tracking broken in VR (when on foot). I haven't tried TrackIR in pancake mode yet, but I assume it is still broken too (when on foot). I think I'm going to go back to keyboard/mouse controls, which I haven't really used since Doom/Quake, and play in pancake mode. And I'll probably need to buy a gaming mouse as well for more buttons. Or just skip the on foot stuff until they fix it, assuming they ever do.
Anyway, I was using the throttle for motion, and the joystick for turning (Z), strafing (X), and forward/back (Y). And then all the buttons and Voice Attack for everything else. It worked OK and it was something I think I could become proficient at. But w/o proper head tracking, you can't aim the guns and tools or look up and down without using the mouse. But switching from joystick to mouse and back is not practical. I might give throttle and mouse a try to stay in VR.