So, I was wondering how my gearscore is calculated. Most of the times when I get an upgrade, my gearscore goes up for the same amount as the itemlevels change, but when I equipped the Stormtempered Girdle (219) to replace the Ablative Chitin Girdle (213), my gearscore only went up by 1.
I figured not all itemlevels are combined to form your gearscore, cos then it would be in the 3000's. But it still suprised me my gearscore didn't increase by the difference in itemlevels between the old and new item as it usually does.