Salute!
One of the misconceptions the armchair pilots have is that a quick turn without a large turn radius is a good thing for defense. It is not.
As pointed out above,, if I am the pursuing jet and do not have enough room for a missile to arm, then the jet performing the "cobra" or whatever you call it becomes a strafing panel in the sky. Otherwise, most of us would let the bandit try to get some smash to get away but I have gone vertical to get arming time for my missile (the IR seeker type). Nice rudder turn as you see in the F-35 airshow videos. Then good tone on mt Lima or "X" and off it goes,
Gums...