Get onto something like Streamyx 4MB service. Its a lot different from the 1MB or 2 MB package - routing to US seems a bit different. Typically see around 300ms to 500ms in 25m raids. Caveat - past 2 weeks WoW seems to be a lag-feast since patch 4.06 was deployed on live servers. Plenty of posts all over including players in SEA about this on the official forum.