SpardaSon: That is what I said, too, in this debate on the Star Wars mod thread. I didn't think that it could be balanced, either. In response, however, EvilleJedi said that he managed to find a way to balance, although he didn't give specifics. Now that I think about it, he might have balanced it just by giving the Rebels the Viscount, which wouldn't really apply to 7DS.
I do, however have to agree with Duke. I would love to see a SSD in 7DS. There should be at least one race that can stand up against the Atlantians. Although, from what I've seen of the TCA, they could probably give the Atlantians a run for their money. But the Atlantians do have three (at least I'm pretty sure its three now) super-super weapons, and I have no idea how Dan plans to balance those.
I definitly don't think that the Eclipse should be included, though. It apparently has "a planet's worth of weapons," plus the superlaser. I don't think that could ever be balanced. But I should point out that it's laser doesn't actually kill a planet like the Death Star. It can kill everything living on it, but it can't actually blow up the planet.
It kinda makes sense though, that the Empire is overpowered. In Sins, the capital ships are more of fleet support. The Empire, on the other hand, their capitals are their fleet. Their ships need to be a lot stronger than a regular ship.
I really wish there was more I could do to help Dan out on all these issues. Right now, I'm just the unimportant spell-checker on the team, and it doesn't look like that will change for quite a while. But if your're writing a ship description for him, and are unsure if something is spelled right or if it is gramatically correct, let me know!
One last thing, where did you get that screenshot? Is it from EJ's gallery? As far as I know, the SSD isn't in the version of the mod that was released to the public.
EDIT: Nevermind about the screenshot. I just checked EJ's gallery again, and there it was. I guess I missed it the last time I was there, because I didn't remember it being there.