Last night Stomp, Prune, McGuirk, Namtar and I pulled together for an impromptu Dire Maul (east) run. All in all it went great. I think we all got something cool out of it, a few Living Essences dropped, I got everything I needed for my Doomguard, and Namtar's being 8 levels below myself and McG didn't seem to hold him back at all. I also managed to keep amazingly close to McG in damage (him: ~620,000, me: ~590,000), something I'm fairly proud of.
We five now have keys for DM north and west, so bring it on!