My only complaint about specialised module slots/modules being restricted to certain ships is that I think Frontier should be more playful with the concept. For example, we should be able to fit Luxury Cabins into Gutamaya ships, not just Saud Kruger ones. That would really fit in with the whole decadent vibe that the Imperials have got going. Also, these new Optimised Cargo Racks should also be able to fit on the rest of Zorgon Peterson's ships. So the Adder gets a cargo boost, and the Fer-de-Lance might be able to carry some cargo without compromising its combat potential too badly. I think it would make sense if Lakon ships could fit the new cargo racks too.