I have to say right now I can't comment yet, I think my install is messed up, and before I added 4.2.1 I forgot to activate everything in the JSGME, also I had not tested the 190 or other none U.S aircraft before all this happened.
But if all things work as before I tried to update I was having a lot of luck with the P-47M (more so with the P-47N, but I consider that post war) and the F4U-1C.
Though the '47M had special super incendiary rounds for setting jets on fire, which is not modeled here.
Here is the live recording without helping minimap:
What do you use to record? I've always wanted to do recordings of flying but the 30 seconds with FRAPS seemed too limited, and its not really something I want to spend money on.
Also, what are you conf file settings? I don't get that trailing smoke effect with mine, your detail seems higher too. I thought I had pretty high settings.