9) Don't turn fight in them, which should be a given.
10) You are NOT the fastest plane in the game, P-47's can easily reach and surpass your speed in a dive and will.
11) If you are below 4k, really, you are way too low.
12) Furball situations are dangerous, best to not dive into those, especially with a 4:1 ratio of bad guys to friendlies.
13) If you find you may not pull up in a dive (fast and steep), use K to alter elevator position so that you can get out of the BnZ quicker.
14) Don't spray and pray, your cannon bullets are very lethal and do not require 50 of them to knock out a spitfire, conserve ammo.
That's about all I can add.