Just reading all the different opinions on SCB's it seems there is no good solution - it still equates to a health potion so it seems to me the best option would be a complete removal and to design something else, or work on tweaking the other values in the game,.
They were added in the last weeks before launch, in some misguided attempt to bring in familiar MMO troupes. We haven't seen a single explanation to why the weapon attributes and grades were removed either, nor a good explanation to mad NPCs attacking you in unshielded ships.By far the best and the most simple solution would be to remove them from the game and everything goes back to way it was. As far as I know no-one was asking for health potions and I'm not quite sure what problems they were supposed to address.
They've actually outright denied weapon variants were removed, actually. Despite it being clear that they were.
I'd be very interested in seeing that denial. I'd like to see how it was phrased.
If they have made a definitive statement that they're still in the game, then I've no reason to doubt it. I'm guessing they might be extremely rare mission rewards or military grade hardware.
Military hardware could also explain the unnaturally strong ships, (NPCs), I've encountered in the conflict zones.