That's simply not true Montezuma.
If an AI pilot was flying them, then yes, a 190A8 could get more kills.... vulching. While it may have a superior gun package, that's all it's got except for roll rate.
I have yet to be able to drop a notch or two of flaps in a turn to get an extra boost to bring my guns in targets in the A8... but I can do that at will with the P51D and B.
You never get into an unrecoverable spin in the A8 because the entire flight you are pretty much in an uncontrollable trash truck with wings. Your only hope is to fly straight and pray you don't have to turn, because when you do, you won't turn very fast.. if you try to force it to, you'll be upside down with tracers flying around you before you know it.
I can get the same # of kills in a P51B as in a 190A8, that's only 4x .50s. How in the world can someone not get more kills in the P51D than the 190A8 if they fly it smart?
If we throw pilots into the situation, then there's no contest the P51D can return home with more kills so long as a really good pilot is behind the stick. Same with the 190A8.
But if you stick a newbie in a 190A8, and then stick him in a P51D... he'll stay with the P51D because it's much easier to handle and dropping a notch of flaps will remedy any wing snap stalls.
-SW