I liked the B better than the D so far, though I haven't used the D very much (even though it is my favorite WWII plane.) The main thing I don't like about the B is that it takes quite abit of lead in the air to take someone down, and I try to BnZ so I usually have to make multiple runs on a target. I think I will try the D more now, but I won't give up the B.
I live in PST zone, but I'm on almost any time during the day or night, and nice piece on the P-51s Spatula.