what's funny to me somewhat, is before i changed my name, i got pretty decent (well, maybe just somewhat ok) at pulling the 90Deg + defelction in a 190 D.
there were literally 1000's of times though i was sitting waiting for the enemy to cross the path, shooting when i thought he was there, only to be just above or below.
that's my experience with gunnery. i'd say 70% of the time i miss because of my judgement being wrong on where the enemy is going to be.
as far as dead 6 shots. i can / have / will be less than 200 and fire a full clip without causing damage to the enemy. my rounds go over the wing, to the side of the canopy, whatever, then i barely nudge the rudder to correct, and as i pass the shot, i overcompensate. by then they either are juking side to side or something, and i can never line back up on them.
because of this i just set all conv to 300. 1/2 between 200 and 400. best i can guess, since i can not judge crap on the screen anyway LOL