I have a problem with the name of Klingon freighter the SS VavwI'. vavwI' is okay (which means "my father" in Klingon), but the registery makes no sense. The SS registry has always been used for civilian non-Starfleet Earth ships, and we've never seen it used otherwised. So why is the primary Klingon faction trade ship using a registry from one of the enemy worlds?
Orion, Gorn, Lethean and Nausicaan allied warships would be registered with I.K.S. wouldn't they? I wonder if there is any such thing as an independent freighter in the Empire? If not, even those would be registered with I.K.S.