I just finished UK at 73 with level 72 pets. Was pretty easy this time around and only had one wipe (really unlucky one) on the last boss. His axe was nailing my hunters as I was strafing them out of it and at the same time I got hit with that cleave that hits really hard. If it hadnt been for that it would have been no wipes. I'm going to try Nexus tomorrow, I'll let you know how it turns out =)