Flying along a 5K+ AGL. Con comes running up on my 6 (or from 5 to 7, let's say). He is either co-alt or slightly higher. He is about 1K and closing.
Right where he you want him. Actually we will assume that he is 1.5K so you have some time to make a decision. How fast is he? If he is closing fast, nose down 10 or 20 degrees to pick up some speed and make him even faster, and start a shallow turn (lets say right). Watch if he is following and try to keep him just out of getting guns on you but close enough so he keeps following. At about 800 (depends on closing speed) you should start going up. A few degrees, just enough to create a 3D problem form him.
If he follows you, keep tightening your turn and climb. At about 400, give him the shot for a split second. Release pressure on the stick just for a split second, then pull up and do a barrel roll. Depending at speeds you may get a shot at him on his way up. If the guy is new or gets greedy, and you time it right (takes practice) he could end up right in front of you at D200. If not, level off shallow dive for speed, since and repeat.
If he only followed for a little bit and broke of at d600 to go up, he still has alt on you, but he is not on your six anymore. He is most likely going to settle for the BnZ.
It works, unless the guy figures out what you are doing and hits the breaks. Then he ends up D100 on your six

Planes will make a big dif here too. 50cal will allow you to shoot him at further distances and also allow you to play with him a little since a ping or two wont matter. 4 Hizookas though and you are really playing with fire there, lol.