Did someone ask for a fresh pair of eyes? *rubs face*
Well I like it, would definitely add to the realism, I mean, factions would definitely try to develop that sort of thing, so mere smugglers, terrorists, and enemies in general, couldn't tease them around their home systems, while they are for example 3K out the whole time.
And as for the balance thing, I don't think this would give too great an advantage to that sort of ships, as they would be good only for intercepting, not destroying.
Although I voice the concern of OORP usage of such ships, for example, some pirate could get one, and abuse it for pirating needs.
So, I consider it should only be owned by system owning factions. Just my opinion. OR, make them limited, so not everyone can use them, for example just a few allowed for a faction(even less, or more, depending on the faction's economic and technological strength)..
Well, that's all from me, for now..
Final vote: Like it, just needs to be worked on some more, but good in any case, good idea!
<span style="font-familyalatino Linotype">
<span style="color:#000000">All morons hate it when you call them a moron.