Some of the pilot testimonials are interesting, especially w/r the whole FW190 issue. I'd direct you to Alan Deere, here. I recall Gaston questioning the low-speed modeling of the 190 within AH.
I think, given the record of a guy like Jonah, for example, using the A-8, the 190 is perfectly capable of being quite deadly without us faking in some undocumented low-speed handling to boot.
I did not go to your link yet (at work and just logged on for a quick fix), but just about every 190 test Ive read indicated both a very high stall speed and a rather violent wing dip.
As for pilot testimonials... I read them because they are interesting but there are simply too many variables, in my opinion, to take the "results" at face value.
For example, a "first hand account" of a 190A turning inside a Spit IX should not (theoretically) be possible in sterile conditions - like we have in AH. Mathematically, it simply cant be done, all things being equal.
However, in reality, the list of items that can influence (and invalidate) what is observed by the pilot is long.
The list starts with the pilot sitting down and trying to recall 30-45 seconds of adrenalin-soaked action with his hands still shaking on the typewriter. His recollection may be flawed, etc, etc. He may be grossly under- or over-estimating speed, altitude, relative positioning, etc, etc. Something as simple as a half circle flat turn to a top profile snapshot could be considered "turning inside" the EAC in the mind of that pilot. In addition to this; consider that most of these guys were, at the oldest, in their mid-20's and probably embellished their encounter to get their 'truly exceptional skills' on record. It wouldn't even be on purpose.
From the typewriter backwards, the list of variables only increases in complexity. Air density, air temperature, humidity, wind direction and speed, relative E states, speed & altitude, fuel load, weapons load, any existing damage, pilot experience, etc, etc, etc.
Hell; maybe a 190 driver finds a Spit in a lazy right-hand turn, scanning for a bandit in the middle of a multi-con engagement, turns with him and lights him up after a half-circle because the pilot in the Spit wasn't looking in the direction that counted most.
Put yourself in the shoes of the 190 driver after that. Boots on the ground, your first kill and yeah, youre probably going to type it up as "...full elevator deflection, turned inside Spitfire for guns solution. Fired. Strikes on right wing root, fuselage and cockpit."
Meanwhile, the Spit was only applying 30% elevator authority.
See where I'm going?