Well, IMHO, unless you upped with the specific intent to go hunt bombers bomber hunting is rather difficult.
If I upped for a routine furball / basefight environment, and otw to target I see a set of buffs at 25k+ heading for strats, I wouldn't even bother trying to chase them down. I know my P38 will empty its 75% tank well before I can reach that altitude then climb another couple of thousand and then chase them down to engage.
But then again wasn't that the same dilemma faced by the real guys who got a last minute scramble to intercept an inbound formation?
While Im all for a little more complex engine management in game, if HTC has modelled fighters that can run at full mil power endlessly then it wouldn't really be fair to deny that advantage to bombers either. Especially when we have bombers like the mosquito or the KI67 or the JU88 where the speed is an vital part of its defenses.
Besides the buff pilot spent a lot longer than any fighter will to get to that altitude to enhance his survivability. It would not be fair to now go deny him that.
So No, I do not think that nerfing bombers would be wise choice. As chalenge has said, once you encounter a set of bombers at the right altitude and with adequate fuel on board, theres not much the buff pilot can really do to escape (unless you do something daft like me at times
)
However what I would like to see is an increased challenge to the bombing element. Prohibit bomb release unless in level flight for 30seconds (on the big lancstuka birds that is) add wind layers (increasing with altitude) at say 15k, 20k and 25k to make bombing from higher alts a bit tougher. It really is too damn easy-peasy as is now. Id also like some semi-transparent to opaque scattered cloud layers between 15k to 25k.