I see a lot of complaints using the word 'difficult" when describing attacking buffs. Yes, it is, when you have no patience or are just plain doing it wrong. I know, you said you didn't want someone to tell you that you are doing it wrong, that does not make it untrue.
It is my goal when attacking buffs to kill all 3 of them without taking a ping. I enjoy flying hours long missions with multiple re-arms, especially when I am defending a heavily attacked strat area. 50% of the time I can make this happen, no pings, therefore no damage and good to re-arm. I'm not better than anyone here but I am much more patient. I also have a lot of practice. Combine patience with practice and you get a lethal combination that only a few elite buff guys can survive.
This subject comes up from time to time and it is always a fairly new guy, or at least an unpracticed buff killer that suggests it. Seasoned buff killers do not have this complaint and once you become a proficient buff killer I don't think you will want anything changed because then it would simply be too easy.
Once again, I attack from the High 1:00 or high 11:00, looking out the side window until the buff is about to pass in front of my guns. Line it up early so you are absolutely neutral stick so your cannons or mg's are sending out a dense stream of lead for them to fly through. Aim for the wing root or an engine. For very high buffs, (above 26,000), I make my first pass on the engine of the lead. If that is smoking after my pass, I leave that one alone because when that engine fails, his entire formation must slow down. Yes, it takes awhile for that engine to quit but it also takes awhile to get back in position in your fighter at high alts for your next pass. There is that patience thingy again........
Also, some days are better than other days. You just have to go with the flow, realize you can't be perfect often, and keep hammering away, patiently.
I have but one wish on this subject, allow a buff pilot to choose between a formation, or the ability to fully man the guns with real players without a formation. Ok maybe one more wish.....a message that says "XXXXXX has bailed all 3 of his Lancaster's. (OK, OK, maybe not)