As when I'm flying (ie, when motherboard/processor on game machine not fried, like now), the Pony of Choice is the P-51B. Nice ENY of 20. If you can't hit with 4 X .50's, you won't be much better with 6 X .50's.
I don't try to dogfight with it in T&B mode. I use it for high altitude escorts and patrolling edges and approaches to a furball. I fly it as a B&Z. Stay fast. Approach, dive in, take a snap shot, extend. Repeat as necessary.
to those of you that can dogfight low in a Pony.
If I'm in another plane, usually I just jink and force an overshoot of the Ponies in the area while I chase other planes around. I might catch a ping or two, but generally, a Pony coming at my Yak, La-5, or Ki-84 will generally be moving to fast from altitude to stay with my turn.