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I reduced BD to 5% of your buildings. In terms of being faction-specific, that's to be particularly mean. But it should be waaaay less mean now.
Opened your save. My computer wept. Switched to the ST planet and ship icons filled my screen, so I zoomed out. Game told me that it _was_ totally zoomed out. You could seriously walk from one end of the inner grav well to the other without getting your feet cold.