I'm stating that buffs are not easy pickings, and making a case for the data confirming that. A single fighter attacking a bomber flown by a good gunner, is more than likely going to die before he gets to pad his hit percentage much.
So what is your full proof approach to padding your hit percentage against a formation of 18K B-17s?
I don't see the date confirming that they're not easy pickings? The data you've provided shows that they have a low K/D, but not that they're difficult targets.
It's more likely that they aren't often attacked by someone using good tactics, or with someone that can aim, so their K/D could be argued to be artificially high...
I don't want to turn this into a "how to kill bombers thread", but I'll show you a basic tactic that works the majority of the time. In this case, I was actually pretty sloppy with my attack, and was too far behind the bombers while shooting. That could have gotten me killed... I normally try to stay slightly more forward.
This attack takes more time to set up if the bombers are higher, but is still effective on 18-20K buffs. More time-consuming, but no less effective.
I'd have to dig for other film if you want it, but I'd recommend doing a search. The topic has come up before.
B24's_0001.ahfI don't think the film shows it (not on my end anyway) but these bombers were each set afire with one pass. While I'm setting up in position for the next pass each time, I'm also waiting for the burning bomber to die so there are fewer guns to worry about...