Wouldn't the shares from the other p2pools cause it to go back to a high-usage state?
What if there was a way to block a user after they submit a bad share (thats higher than target), for at least 30 seconds?
http://drk.p2pmine.com:7903/ is at the latest.
It's possible there are other nodes or the ports have changed.
http://p2pmine.com/nodes.php has a list of all our p2pool nodes.