EYE,
Some more things: First of all you have his method dead right- only attack from advantage and make every shot count. Oh, and only attack the best target as well, even if that is the one straggling off from the others!
His dislike of command had nothing to do with religion either, lump that in with the drinking or the french canadian theme. Bollocks. In reality he was an incredibly emotionally insecure person. That was WHY he was a loner, he couldn't understand or get along with people. That and he probably had a suspicion they were promoting him to get him out of a cockpit.
And yes- he inspected his guns every time he flew... he was always suspicous of the gunnery officers tampering with them or making mistakes loading them.
As for his 190 trick- he was not tail end charlie, they gave him a wingman when he flew in england. He left his wingman to kill that plane. This also BTW NO indication of the skill of the pilots in that squadron. They were trained and skilled in flying as a team. They did VERY well at this and for themselves in 1 on 1's too. Also For the record.. sailor was 2x the pilot buerling was, he was good at lone wolf AND team fighting. And knew the place to do both.