[megalopsuche]

Check the manifold on the 51D-25NA in HSFX and UP2, see the bias for yourself.

Go to stock, unmodded 4.09m and try to find 51D-25NA...you won't find it. The 25NA is NOT a STOCK plane, it is a MOD plane. You said that UP tampered with STOCK FM...they did not.

The new 51s also have a different dm than the stock 51s.

New 51s DMs are different...so what? You said that UP tampered with STOCK FM and DM...they did not.

Provide me the justification for having a different dm for the modded 51D-25NA that only differs in the fuel/manifold pressure it uses from the stock 51Ds. The stock dm should have been retained because no one except Oleg and his team can claim to know why the stock values were set as they were, and I've never noticed the stock 51s to be particularly rugged aircraft...Oh, wait a second, my point is moot because UP2 nerfed the manifold pressure on the 25NA in addition to the dm.

P.S. Out of all the aircraft in Il-2, I've flown the Bf 109 more than any other, the P-51 only occasionally.