I think the balance is perfect.
Stupid approaches will kill ya if ya meet a Lanc. OTOH, if you know what you're doing, they're easy prey, provided you have the ammo.
They must not have their guns upped. The choice between the B17 and the Lanc is, here as in history, a choice between bomb load and defensive capabilities.
JU88's defenses are quite pathetic. I don't bother with guns, but go for maneuver defenses in one.
------------------
StSanta
JG54 "Grünherz"
"If you died a stones throw from your wingie; you did no wrong". - Hangtime