I'm not a very good Corsair pilot, but I can do respectably in the 4 hog, simply because that plane is a farging BEAST. It's unbelievably powerful, and pretty much as fast as it gets. But I will admit that I do as well as I do in the -4 only because I keep it fast and use its speed to my advantage. I'm not good enough in the Corsair to get slow and turn-fight with people like some folks do.
I think I fly the -4 differently than I fly the other Corsairs, and that helps me.
I think a lot of people fly the Spit 14 like they'd fly the Spit 16, and that hurts them.