Let me help ya out. Turn yr tracers off - b/c they won't help ya here. You need to anticipate where the bullets will end up - not be shown. Put yr inside guns to 475, and yr outside guns to 450. See what happens. Myself and Stoney have more time in P-47s then the rest of the MA population combined. Do these 2 things, and you will kill with them.
I'd like to see a logbook....Myself and Hajo have flown these things religiously for the past 10 years starting way back in AH Beta (or shortly thereafter) with the -30. I don't think you've got more time in than both of us put together, let alone the main arena....that is of course, unless you fly 24/7/365. Then, I'll admit you've got more time in than we do.