Honestly, this fight has me baffled as to what works best. Not only do I not know which tactics to use, but my attention is called to so many different things (CC, Debuffing, avoidance tactics, a bunch of adds to DoT), that it's hard to even think too much about DPS. Either way - it only took us 2 real attempts to kill it. So I can't complain. But perhaps with some more attempts I can try some different tactics.
Did you use FDCL when you weren't using mindseer? What was the filler?