Guys, I just noticed something strange! For days now I've been practicing hover hold maneuvers playing the Instant Action with no success. Whenever I enter a hover, the helicopter would slowly drift and eventually gain speed and will not remain in the hover.
I'm no expert, but if you trim slightly pitch down in auto-hover, you will creep. What I do is look out the side window and if creeping, add a little nose up input and re-trim. The instant action scenario is interesting because it requires so much collective to maintain altitude. Not sure if that is due to having full fuel, weapons, and altitude, but the VSI definitely needs to be watched carefully. Also, pitch seems to change with weapons release, then return to stable.