I know I would love to see this plane, and I've voted for it every time.
Earlier today I was playing Good Ol' IL2 FB, farting around in it to see what it could do. Now, I am far from a good pilot. But the P-39Q-1 (I think it was the Q-1) Was so forgiving and agile I couldn't believe it. The plane murdered a few Zeros with me at its controls (A truely amazing thing!)
But, I would like to note something about the "Flat spin" problem.
I read somewhere, in a book (Yeah, sources suck when you lack them) that when the 37mm gun ran out of ammo it was more likely to enter a spin. Because of the weight offset, but I remember that from the same source they fixed it by simply adding a little ballast and not ejecting the shell casings from the plane. (the source was a book I checked out from the Library a few weeks ago, just recently turned it in... I hate fines...)
I know this tour I've been using the F4U, and Fw190, and I would switch instantly if we had the P-39Q. That, and I can't complain about spiffy doors. ._.
Just a quick question though... Would it be possible to give the 37mm the horible reliabilty that it actually had? I think it could be, but it makes me wonder....