Maybe bluff, and act as if you were going to hit the deck? That always works for me, and also maybe barrel rolling above the enemy, and getting around on his six seems to work for me A LOT! And also, and this one works from time to time, but as they come to shoot, I usually cut my throttle, nose up and sorta break in the middle of the air. They pass right by, and then I just bring the nose down, and open up.