I have to chime on Hangs side on this argument, in your most common MA scenarios the D is better suited. Any advantages the B has can be counteracted somewhat by taking 4 guns in the D, and you get more ammo than the B to boot. The only reason why I fly the B which I haven't done in awhile to be honest, but really thinking about going back to.. is IMHO the coolness factor of the razorback design which I've always perfered for some reason.