So I've been having a blast running my warlock and my resto druid through the new 3.3 Dungeon Finder system. The wait is a lot longer on the warlock, so I tend to play the druid more - so he's been rapidly catching up to my warlock in terms of his gearing.
So I thought I'd try tanking on my Death Knight. I've got a proper frost spec tanking talent build, I'm defense capped (at least for heroics) and have decent amount of dodge and parry. But boy do I suck as a tank. I figured I'd start slow and try out heroic UK. Easy peasy, right? Wrong.
Granted, the downside of running heroics through the dungeon finder system is that you can expect to get grouped with people that significantly outgear you. So unfortunately, even with what I thought was a decent rotation, I wasn't able to hold aggro against the dps that they were doing, so they were constantly peeling off mobs from me in the trash pulls in the beginning of UK. So I got vote-kicked before even getting to the first boss.
I think it is going to get much more difficult to gear tanks because of the way the new dungeon finder system works. People just don't have the patience to wait for someone that is learning the role, and if you're significantly outgeared, it would take a lot more skill than someone new to tanking has to maintain threat against that kind of pressure.
So, I'll give it up for a while and stick with my healer - maybe try it again every few days to see if I can get a successful run in. I have managed to tank heroic Gundrak with my DK, but it was with a group of similarly geared folks. So we'll see.