I don't understand why balance is so important in this case.
A single bomber should be able to do some minor damage to a BS but no more than a fifth of it's hull... That's my vision of them.
But what I really wonder about is the reason why BOMBERS have specieal high-damage GUNS. Why can't they use high-damage torpedos like it was originally designed. Who had this #*\f$?%#! idea of adding antimatter guns with such an dmg output? I want torpedos ffs... They would be absolutely useless in PVP and could only be fired on really immobile targets.
The snac seems to be a very bad compromise to reduce cap-whoring a bit... at the cost of rationality, commensurability and gameplay...