[UrsusMajor]

I think another reason for slower xp grouped vs. solo is rate of pull. As has been shown above, it can take 6+ mobs killed in a full group to equal 1 mob killed solo.

This means that your group most likely needs to be pulling yellow to red con mobs and needs to be pulling them constantly. The only problem with this is red cons can be extremely difficult if a camp isn't broken and with the slightest misstep can cause a wipe. So many groups instead go for DB - Yellow mobs. The problem then arises of not enough mobs to keep a constant stream coming as they go down so fast.

I know when my druid grouped in Unrest, grouping was always much slower than soloing. It was easier than soloing and more fun but xp really sucked.

Another good example and yes I know this weekend was a 25% xp bonus but my necro went being level 40 with 2.5 yellows to hitting level 60 this weekend. This was just xping Sat-Sunday. I hit 46 at about 5pm est. Without the xp bonus I'd say I'd probably just have hit level 45.

How does that compare that to high level grouping?