A couple months ago I was in a big fight over a Bish base, I THINK it was OzKansas. Well, I've been BnZing through the furball so I'm sort of high onthe pile in an F4U and see a friendly going vertical with a Spixteen on his six.
I roll in to dive to build up steam and get a good position, then pull up into the Spit's 6-low blindspot, ~d800 out. I've got him boresighted and dead to rights, just waiting to get him in convergence, and RIGHT as I hit D400 (my guns are set at 350) and am JUST twitching my finger to fire when some chump starts firing from d1k over my shoulder (so he's almost 2k out from the con!). The Spit breaks and gives up on our friendly, but I lost a perfect kill.