Tuck was shot down (flak) well before the introduction of the Mk XIV.
BTW, Tuck once fought Adolf Galland in a 2 vs 2 situation. Tuck shot down Gallands Wingman, and vice versa.
Tuck got hit in the cooler by flak BTW, - he strafed the gun before ditching (or was it baling) and had a hit through one of the barrels, destroying the gun.
Tuck met Galland later on in captivity, and then they became friends after the war.
Tuck also was one of the first to "welcome" Gunther Rall when he was shipped to England, - captivity and briefing again.
(Now that was a true Gentleman Rall said)
As to your speculation of the G-14, it is awesome with acceleration and climb, as well as a decent turner. But towards a late war plane set, you will have many that are as good or better in many of those categories, so it all depends. Depends on altitude as well

Best way is to try all possible planes and tactics against everything.