http://ciisqbg45nggykdl6rjdrq3wc64csga4vkphu66qsi65mypeitqedoad.onion/blog/balancing-loads
That gives people using the DNS balancer a fair chance of being able to use all the available IPs, without us having to put all of those IPs in the DNS balancer. So if you're wondering how you were assigned an IP different than the one in the balancer you connected to, or how we can advertise "600+ available IPs" when the balancer only has 27, that's how.