I went in with fc group (6 people to be exact including me. The other 2 were filler to get us in the door and they left) and we downed it in 4 tries with me lagging and it was super bad lag too. We were in TS and we were laughing at how I was teleporting during divebombs. That was my first session and I did it on monk. Currently making attempts with tank so I can help others through. It's all atittude and desire. If I can do it lagging hardcore with only 6 people you can too. Just practice.