I do fly the spit regularly, and noticed this a few pages back, yes the FM was adjusted (its in the readme AND the guide!), but I can just trim it out to fly level, not sure what the huge calamity is. I noticed the trim issue, but I found evidence that indicates this is accurate, and this has since been backed up with photos that roughly match the in game spit in level flight.
The spit doesn't have in-flight adjustable aileron trim, so you'll have to counteract slight roll with aileron somewhat, as you had to do in 4.09, and have to do with many aircraft like this. So YES the spit needs more elevator trim, NO it doesn't affect the FM adversely, I just shot down 2 La-7's. There is no need to
exaggerate so much about these FM issues so much, and btw the P-51 wasn't "tuned up", it had an error of some 40cm being missing from the fuselage length, which is now fixed.
