I just ran a traceroute about 10-15% packet loss on the last 3 hops to the servers. This is causing a huge amount of lag during prime usage times. This isn't going to stop until the servers are moved to a data center that has better routing to it.
SE can you please look at moving the NA servers out of Montreal, Canada. Almost anywhere in the lower US would work better. Due to the poor network infrastructure and routing most ISPs have to Montreal there are going to continue to be times where hops get overloaded and can't handle the traffic.
http://i.imgur.com/8TUN7J6.jpg