What exactly is the reasoning behind both Scy capital ships having a burn speed of 9? It's not like they're particularly fast in combat and getting chased around by burn 9 capital ships seems a bit much. Even 8 would be fine for a fast ship as no vanilla and almost no mod capital ships go higher than 7 burn. I think a few neutrino go to 8, but that's it as far as I'm aware of.
Only the Keto has a burn of 9, and it's a support carrier. The much more dangerous Nemean Lion is burn 7 like every other vanilla capital-ships.
Most Scyan ships have +1 burn compared to the fast vanilla ships of their class, and the carriers have +2. That is because they can't mount augmented engines or unstable injector and will be stuck at this speed. Since their firepower is somewhat limited, they have to use their speed advantage to jump on weaker fleets.
The exceptions to this rule are the armored ships that have the burn speed of a vanilla ship and are stuck at this rate, limiting their speed optimization.
I suppose I could reduce the Keto's burn to 8 but then it will feel like a straight downgrade from the Astral without any redeeming ability since the nerf of the main gun.