Heya Heater. Some good advice above.
Things I can add:
Trim. If you are far out of trim you will have a very difficult time lining up a good steady shot.
Timing. Wait for it! Don't shoot until you are close enough and it looks like the best shot you can get. Remember it takes energy to pull lead on a target, so stay in lag persuit if you can and don't pull lead until you can be reasonably sure of a kill shot.
I'm GMT -4, drop me a note at sconrad@hfx.eastlink.ca and we'll arrange some training time if possible.
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Lephturn - Chief Trainer
A member of The Flying Pigs
Visit Lephturn's Aerodrome for AH news, resources, and training data.
http://users.andara.com/~sconrad/"MY P-47 is a pretty good ship
And she took a round coming 'cross the Channel last trip
I was thinking 'bout my baby and lettin' her rip
Always got me through so far
Well they can ship me all over this great big world
But I'll never find nothing like my North End girl
I'm taking her home with me one day, sir
Soon as we win this war"
- Steve Earl