There's one more move that works well (has worked well for me), and especially well in a HO situation:
As you're approaching the enemy co-alt, and he's still far enough away that he doesn't see what you're doing, roll inverted and keep flying towards him, level. As soon as you're D800 or less, or he's about to start shooting (HO), pull full UP elevator (yes, make sure you're not too close to the ground when you do this) and execute the rest of the "split-s" you started when you went inverted. The other guy will not be able to follow you (you're pulling + and he's thinking you merely dove under), and will wonder where the hell you went. Keep pulling through with back pressure until you are climbing again, say 60 degrees or so, all the while using your view keys to locate the other plane. 9 times out of 10 the enemy will be right above you, close, banking perhaps, trying to figure out where you are. Now you shoot...
Again, works for me most of the time. The trick is to make the roll to inverted quick enough and far away enough that the other guy is unaware that you're inverted (unless he has been watching using zoom).
To be safe, I use rearview while pulling through, looking for tracers. There have been one or two times when they've gotten a shot, but it's hard for them to be accurate when they're in a high neg g situation, pushing down trying to follow you. Adding a little left or right roll if you see tracers will ensure that you survive.
-AlgyFT