Interesting conversation, the few planes I fear in my Pony B are LA7's, Yaks, Spit IX or XVI's with an e advantage, 109's (Depends on the stick), and the occasional F4U. F4U's are usually no problem, but when they have more E than I do, it worries me a bit. The huge advantage in the Pony B I see is it's stability at very low speeds. I've figured out how to keep that thing flying at full flaps and 100 mph.

It's very nice for the 190's that are scissoring in front of you, I just slow wayyy down, go straight with full flaps and hit them on the deflection shot every time they pass in front of me. F4U's tend to have a harder time staying on my six at low speeds as well.
I personally love my convergence at 400 and 375 since that's where I always seem to find myself opening fire.
I actually hate B n' Zing, oddly enough, I'd rather get down and dirty in a furball.
The biggest issue in dogfighting a pony, in my opinion, is flap and WEP management. It seems like my flaps are constantly moving between 0, 1, and 2 notches, that coupled with WEP in a hard turn makes these things crank around pretty surprisingly well. I have found myself having to extend and gain alt against some turn fighters before though, they usually don't like it when I come back and sneak up on them again in standard pony fashion...

The B model is a better plane than the D at low alt, in my opinion. However, once you get up above 15k, the D model rules.