Standard station weapons have been improved so that a lone fighter can get hammered by stations.
Could the guard bases be upgraded so that a lone BS gets hammered as well?
Otherwise people are just going to take a lone BS into a guard system with a few fighters as escort and harvest guard pilots.
Perhaps doing as the infocards for the BS inferno and battlerazor says, they both (i think) have the line 'only stations and capital ships can handle the massive energy demands of this weapon' or something like that.
EDIT:
While I remember, could we have jh's disruptable?
Reasons, in the SP story juni always checks that the jh is aligned before letting you jump through it.
Plus it would add some more tactics to stopping traders/pirates/terrorists escaping.