Just to add to what others have said regarding trim, when you get over 450 mph all of the control surfaces get heavy, including ailerons.
If you can, map a button on your stick or throttle to toggle combat trim on and off. This will aid you in using the trim controls as a control boost.
You can dive in excess of 525 mph and maintain decent control. After toggling off combat trim you can pull back on the stick and give it elevator trim at the same time to pull out of your dive. If your target is trying to break turn you can use aileron trim to roll your lift vector on them quicker and still be able to track them enough for a snap shot.
You can toggle combat trim on and off to "zero" your trim inputs to keep from over controlling when you do this.
One other thing. The view from inside the cockpit really sucks. Even with a TrackIR unit it's difficult and without one you will have an even harder time keeping track of your opponent. Many of the better pilots know how to use this poor visibility against the K4 pilot and it makes it especially hard to survive in a furball after you get slow.
Originally posted by DoNKeY
Anybody else have anything they want to add?
donkey