I agree that we should let tdock speak his mind but I also share MLE's skepticism. tdock has been known to say things that don't make sense (he loved the HD580 but hated the HD600, loves his HD650 but hated the 2 he listened to previously, etc). Either his impressions are very subjective and change frequently or he is hearing absolutely minute things that 99% of listeners don't hear. In either case I consider his impressions to be somewhat unhelpful for those researching the models he reviews. I think its perfectly fair to point that out while still letting him do it. Lets all calm down and move on.
On the way out the door, but I don't really hate the HD-600
I have a love/hate thing with it just like the K702. At one point I had both the 650, 580 and 600. The 580 grill makes some subtle changes.