teaching dogfighting skills with just written descriptions is rather difficult.
Anyway going to try a bit longer.
Lift line/ lift vectos is a good concept. Think of a circle, perpendicular to wings going from the nose of your jet to the tail.
Defensive situation plane on your 6. Roll 90° left/right and put on the Gs. You´ll create a small amout of angles and the bandit following you will be at your high 6 o clock (above your rudder). keep the lift line on the bandit and keep turning.
Say you have a sustained turn rate of 20°/sec. The banditt in is lowly Mig19 can sustain 15°/sec. In the time it takes you to turn 180° (9 seconds) the bandit will manage to do 135°. It will take you about 60 secoonds to gain 300° which you need to go from defensive to offensive.
in those 60 seconds you will have done 1200° of turning so 3.3 complete turns.
Once you are in that advanatgeous position you have not won yet. take care of your overtake. Use lag pursuit, use the vertical to keep overtake under control
when you overshoot the bandit its not because he was doing an unrealistic turn. it was because you were much faster then him all the time and you notice to late so you can not decelerate fast enough.
It will also help a great deal to make ACMIS of your fights to analyse what is really going on.
Good luck in your future pratise.
If you really want to get into it check out that book
http://www.amazon.com/Fighter-Combat-Man...9575&sr=8-1