I'm glad this is still being worked on. It's always been a weird ship pack that doesn't fit anywhere, yet has some of the most ambitious and weird ideas; I love it.
My only wish is that the Newfoundland functioned better in combat. I'd love for it to twist like a snake instead of like a stick bending slightly. Perhaps if the compartments could be spaced further apart and 'bump' forward and back a little. It just feels too rigid, making it a bit unpleasant. Changing full steam ahead to forcing you to max speed, while providing every compartment with damage resistance and flux dissipation could be incredibly neat, letting you do drive by's or plow through enemy lines. As it is, it's not a ship I think anyone realistically brings.
The Carolina still sounds gross enough for me to never run it. The sound effect seems like a slightly distorted actual revolver, which is somewhat unpleasant to the ears and stands out compared to every other weapon in Starsector, modded or otherwise. If some alternative could be looked into? Make it a bit sexier?
Edit
I strongly suggest taking Warnoise's suggestions with a bit of salt. The Shield Breaker is extremely broken when combined with many other popular mods. I think expecting anyone to run EdShipyards and nothing else is being silly. Hullmods like Split Chamber and certain ships (Predator X) make obscene use of the shield breaker weapons, especially any ship that has the speed to cycle engage. I'd say they're outright OP, but only when combined with other mods.
Which is sort of my experience with ED Shipyards. Maybe the weapons are all perfectly balanced with Vanilla, but with my 40+ mods, Ed Shipyard weapons consistently seem capable of being abused over any other modded arsenal. I would strongly be wary of making Shield Breaker weapons even better than they are.