Question: "How do you fix something which you can't actually prove is wrong?"
Answer: "You can't. So don't fix it"
The above is probably the best way to describe HTC's attitude on this matter, at least, IMO.
I've dedicated a lot of posts in many threads concerning this very subject. Being entirely untrained in any kind of aero-engineering knowledge, the only thing I could do was to try and provide anecdotes from other gamers, and compare the each of planes in as objective a way as I could imagine.
I strongly feel that either;
1) the 109 and 190 has stability issues so serious as to be considered 'abnormal'
or
2) the major opposition the historical 109s and 190s faced in the war, are much too stable and easy to manage, notably the USAAF planes
The willingness and aggressiveness of the P-51 and P-47 pilots in the game, to engage planes known as much more maneuverable than their own, often with considerable success, often surprises me - and not all of them are the 'expert pilots', so to speak.
In common contrast, the frustration levels mounting around 109s and 190s are IMO seriously high among the 190 or 109 pilots in the game, I myself included. Not all of them are dedicated 'LW pilots', as one might suggest, and definately not all of the cases are related with personal skill issues. Engaging in a slow-speed fight, which typically described as 'superior against the opposition' is in the MA a near suicidal attempt, IMO, and such results manifest itself in the form of the general tendency of how people fly the plane - "Bore and Zoom", as someone might put it.
The problem is, how can I prove that AH's version of depiction in the stability of the 109/190 pair and the P-51/P-47 pair is wrong? If anyone else has got any ideas, please, let me know.