I haven't looked yet, what's the rate of nebulae and asteroid systems? Those mess it up too because it sends colony ships straight from the shipyard to the "nearest" empty world. with lots of planetless systems they end up half way and out of fuel, draining the AI's resources and causing it to send another ship from the same shipyard to a planet even farther away.
------------------
Compete in the Space Empires IV World Championship at
www.twingalaxies.com.