High bombers are by no means an easy kill, especially if they are good gunners.
Even Lancs can be difficult If you don't get enough warning time to get above them. And with 33K KI-67's B-17's and B29's I'm happy If I Kill 1 before I die.
I takes patience and planning to intercept them or even to make a 2nd or 3rd pass, many fighters want to fall out of the sky if you aren't gentle on the controls, and turning around too fast slows you down to where you are a sitting duck for gunners or even outrun by the buffs.
I will admit to bailing on bomber runs once in a while but only after I drop and only if I don't see anyone trying to come up for me. Last time I posted on 200 that I was at 24K hitting Bish city and no one came.
lately I've seen bombers turn around 2 sectors from their target and fly back home, or go off the map and then bail after I follow them there.
Why not at least try to get your bombs out before you bail????