Just to show you I'm not kidding when I say it's causing the clients to be shoved towards the server with the lowest IP in the pool (in this case being nova), here's part of a /map output. I've removed the exact user counts cause one of my fellow admins didn't want me to paste them here (don't ask me why...).

Code:
shire.sorcery.net --------------------------- | Users: ( 7.9%)
 `- rivendell.hub.sorcery.net --------------- | Users: ( 0.1%)
     |- nexus.sorcery.net ------------------- | Users: ( 9.9%)
     |- iuturna.sorcery.net ----------------- | Users: (11.6%)
     |- nebula.sorcery.net ------------------ | Users: (12.7%)
     |- terra.sorcery.net ------------------- | Users: ( 9.3%)
     |- wraith.sorcery.net ------------------ | Users: ( 0.0%)
     |   |- luna.sorcery.net ---------------- | Users: ( 5.2%)
     |   |- nova.sorcery.net ---------------- | Users: (26.1%)
     |   `- bonzai.sorcery.net -------------- | Users: (16.8%)
     `- services.sorcery.net ---------------- | Users: ( 0.4%)