I think most or all of us lack the knowledge of the back end infrastructure, how many physical processors/cpus/servers serve each "map" and if separate instances are on separate servers/cpus etc to try and backseat design the GW2 environment. I'm glad they are taking some steps to measure metrics with some relatively minor changes to see if it's a direction they can work in or they need to work in another direction. Likewise, opening more instances may or may not help, depending on the back end structure. This is what Anet's engineers are there to do. We do our part by sharing our experiences, they do their part by asking, listening, and measuring more objective metrics. Thanks Anet for giving a shot and seeing what might be causing the issue.