[Slick]

I use that very "super fast" battleship design also for my Stellar Manipulation ships. You paid big bucks for them, you are paying big maintenance for them, you can't have them spending too much unproductive time moving around. It's good if you retro-series build and/or want to retrofit to a different configuration because the basic hull-engines-spaceyard-etc is the same.

With these designs, they usually operate solo so they have to be "minefield resistant". Keep them protected behind your lines, use armor instead of shields. So long as the spaceyard component survives, it will repair itself.

I also make a "super fast" rescue ship. Same basic idea with repair bays added also. I'll build these at strategic places and mothball them. In the rare occurrence that a fleet takes lots of damage and it will be several turns before the fleet's existing repair capability completes repairs (or the fleet's repair ships got killed), I'll activate these ships to assist.