Help please, where is the smart trait listed?
Also a suggestion. While making the torpedo and missile bays scale perfectly makes for easy maths, why not deliberately introduce a little variance? You could have a rationale that at a certain size tracking and firing systems don't need to get any bigger and the Large bays can pack in a few more sardines. Let the 500 ton bay hold 35 torpedoes, and deliberately make that a nice niche point. It's hardly going to break the balance bank vs. existing variances in the powered weapons, but then makes some 'characteristic' flavorful TL designs. The patrol frigate just gets that extra little edge for instance. Which is what would be representative of a realistic design, weapons don't just follow a perfect scale. This is happening with powered weapons to a degree anyhoo.
Hardly a biggy I'll admit, but perhaps something to consider as the rules get more fine tuned.