On Tuesday night, my guild hit the new Icecrown Citadel bosses in the Plagueworks wing -- Festergut, Rotface, and Professor Putricide. While Festergut and Rotface are both pretty straightforward encounters, Putricide is a different matter. Due to Icecrown's gating system, you will have only 10 attempts on Putricide this week (on both 10- and 25-man, so 20 total if you see both versions of the fight), and mistakes are costly. Moreover, our raid found some pretty good strategies for both Festergut and Rotface, but there's a lot of conflicting information about Putricide.
Our hunter's guess was that the encounter on the PTR might have been buggy, and that's why the different strategies we read seemed at odds with each other, so our raid leader looked it over and took what turned out to be a pretty good shot at what we needed to do. After wiping on Putricide-25 3 times and walking away from it convinced that the encounter was still bugged, we split the raid into multiple 10-man teams and took a crack at it there. The footage you'll see above is our 10-man's 4th attempt and a clean kill (i.e. no deaths), with my annotations on the fight. Past the cut are a few more notes (and one correction) that I hope will be helpful.