The post patch "Lag Monster" pwned us on our first couple of attempts after clearing Kalecgos, Brutallus, & Felmyst before end of raid; however, after Blizzard vanquished the "Lag Monster" over the weekend, we were able to return and spank the twins in one night of attempts, lag free...
Although the encounter was nurfed in patch 3.0, the technical aspects remain a bit of a challenge. Nice job mastering the positioning, debuffs & conflag everyone!