Frankly, I don't think the Falcon should have direct turret control, but rather a convenient way to give orders to the gunners. Meaning, for example, that you could target something and tell the upper gunner to attack it, then target something else and tell the lower gunner to attack that, or lock the turrets into the "front" position and use them as regular primary weapons, etc.
The turrets only rotate some 180 degrees or less horizontally, so player control would likely end up being pretty frustrating when the AI just wouldn't fly the ship so that you could shoot at what you really want to. IMO the turrets would be much better suited to be AI-controller turrets you can give orders to and having the player's role be flying in a way which allows the gunners to take their shots.