Throttle management is key; it will torque the entire aircraft to the left or right. It can help you hang longer and will allow you to perform stall-speed maneuvers that no other plane in the set can follow.
Unless you're in an F4; don't make a habit of sustained flat turns.
Unlike most A/C; where diving on a target is preferable, the 109 is well suited to coming up from underneath it's target.
Vertical is fine; though the A/C is equally suited to rolling scissors in the horizontal plain.
If youre taking up a tater bird; set up for crossing shots and aim to hit with the first round.