If your not closer then 500 yrd (and most likely aren't if he's still breathing) and pull up into one of the better instantaneous turners (F4U's, N1K2, Zeke, P-51, P-38 to an extent) your only helping them get the nose around quicker.
While you pull your nose up on them, they are still coming full circle, at a lesser E state intially anyway. By the time you close the gap to firing range they will have their nose all the way over.
Best way to beat this instantaneous turn is to pull up on them, but not completely to where the gunsight stays on them.
As you pull vertical, maintain an angle. By the time they get the nose over, they will have missed the shot and be perfectly set up for a rope, if the zoom is continued from underneath them (intially underneath, anyway). A moderate G pull with a 180 degree roll, or a normal yoyo will put you right on their back side, if wanted, when passing through their max altitude for the instantaneous turn.
The F4U and N1K2 can pull off that 180 turn with very little E loss, so observation is key when zooming out, as impatience kills

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There is no escaping Murphy's Law!
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