Stealth Chopper Nose Up Annoyance

This has happened since the introduction of the stealth helicopters, but since I've had more opportunities to use them recently, its becoming increasingly irritating. For some reason, they constantly want to nose up. They don't point at the spot you want them to, so I'm having to push forward on the mouse considerably to stay on a target, whether on the ground, or in the air. Its making fights with other helicopters in particularly ridiculously difficult to maintain, and trying to hit infantry in a quick pass is near impossible with the guns because you're fighting the aircraft's position. 

Why are they nosing up all the time? No other aircraft do this in the game.