I don't think the Fw190D-9 should be perked.
As far as later British planes, the LW fans don't seem to mind the idea of us getting an unperked Tempest MkV, although I can't for the life of me figure out why. The Tempest would, IMHO, be a far more imbalancing aircraft, in the MA, than the Spitfire Mk F.XIV. Up to about 15,000 to 20,000ft the Tempest would be superior and in AH the vast majority of the fighting takes place below 20,000ft. The only thing that will outrun a Fw190D-9 down low, barring jets, is a Tempest. The Tempest will also climb better, zoom climb better, roll and turn comparablly and is armed with 4 Hispano MkV 20mm cannon. The Hispano V has a muzzle velocity of 800 meters per second and a rate of fire of 800 rounds a minute, or, in other words, nearly the muzzle velocity of a Hispano II with the rate of fire of a MG151/20.
If the Spitfire Mk F.XIV is perked, what will be its companions in official Ubėrdom? Lets try a theoretical list:
Spitfire Mk F.XIV (Jan, 1944)
Spitfire Mk F.21 (Mar, 1945)
Fury (???, 1945)
Meteor MkIV (???, 1945)
La7 (???, ????)
Ki100 (Jan, 1945)
P-47M (???, 1945)
P-80 (???, 1945)
B-29B (???, 1944)
Ta152 (???, 1945)
Me163 (???, 1944)
Me262 (???, 1944)
Ar234 (???, ????)
This is by no means intended to be a complete list and I don't have all of the dates of service memorized, hence the question marks. Here is my question: Why would I ever waste a perk on a Spitfire Mk F.XIV with those other monsters to chose from? The ammount that I personally play will probably get me no perks or one perk per tour. If I take a XIV, I am going to be meat on the table for some other player who flys more and earns a perk each night or every other night. Therefore I am going to have to take an Me262 instead of a late war Spitfire, just as I now fly the Bf109G-10 instead of the Spitfire MkIX. As I am not very good, I need to be able to escape and the only way to assure that is to take a plane that can outrun whatever is chasing it. Being able to run is half the fight.
My thought is this, is the Spitfire Mk F.XIV is modeled, don't perk it. If it is too powerful to model without perking it, don't bother modeling it at all.
Just some material for thought.
BRING THE, NON-PERKED Fw190D-9 TO ACES HIGH

Sisu
-Karnak