OK. Anything that REALLY sucks the E out of it? Anything that it does fairly good at? And what type of planes would be a good match against it. I don't really want to comit to a fight agains a plane that is great in an area I'm uber weak in.
It does good, you just gotta know the nicks in it.
Depending on what you're doing, if you plan on LANDING the kills, you either gotta sneak up to 'em, or BnZ 'em. There was a time where I could get without a problem 3+ kills a P-39 sortie.
Dog fighting? Well, I've actually realized that the part of it bleeding E can be for your advantage. You make one turn, and the thing's almost OUT of E, so many pilots will get surprised (or, happy, and blow your bellybutton out of the sky), and blow right past you. You just have to get the overshoot right. (IIRC, chop throttle, hard right, then left rudder, and hard left, and go back right, and they should end up right in front of you.) If you're a good shot the 37 is a beast.
This is just all I can remember. I'm not all that active in the game much now.