I delayed way too long on this due to life and a load of other factors, but the updated Starship Speed Standard I talked about making and that @Wes left in my hands is done and ready to be looked at.
The TL: DR is that there's the new Restricted speed tier which should only be used for Really Fast Stuff, and the Factional Traits. The long and short of those is that Yamataian ships have great strategic mobility, with the fastest FTL speeds in the Kikyo Sector, Nepleslian ships are really hard to put down with redundant systems and tons of armor, and Duskerian ships often forego good FTL systems on some starships in favor of mounting some of the most advanced stealth systems.
There's more detail to the quirks, talking about things like how different nations handle power armor and small craft and things like that, but that's the short version.
The TL: DR is that there's the new Restricted speed tier which should only be used for Really Fast Stuff, and the Factional Traits. The long and short of those is that Yamataian ships have great strategic mobility, with the fastest FTL speeds in the Kikyo Sector, Nepleslian ships are really hard to put down with redundant systems and tons of armor, and Duskerian ships often forego good FTL systems on some starships in favor of mounting some of the most advanced stealth systems.
There's more detail to the quirks, talking about things like how different nations handle power armor and small craft and things like that, but that's the short version.