Well, we finally did it.
We had killed heroic Sindragosa 3 raid lockouts ago (this week will be our 4th kill of hardmode Sindy), and had been wiping horrifically to heroic Putricide since then. This is notable only because it is so "fail"... every other (10-strict) guild to be 10/12 had Putricide down yet struggled with Sindy, while we did the opposite.
Well, I think I've established before that my guild is weird when it comes to raiding, I guess this is just another page in the case file :)
What we found that worked for us flies in the face of the other recommended strats we've read or that have been suggested to us: every other guild we've talked to swears by stacking on the green ooze-spawn location to dps it immediately. Now, I can understand this if you're running a melee-heavy raid, but tonight, we had two melee: and they were the tanks. Not only that, but the person targeted by the red ooze often gets caught up in the green's first explosion if you stack at the green spawn point, and they can't get healed quickly enough to survive more than two ticks of the red's own damage.
On TOP of that, having all of your casters sailing through the air and then running around trying to reposition for the next explosion really cuts into your dps. Significantly.
So what did we do?
We stood in the middle by the door for transitions (and made sure we held transitions to not have three oozes up). Equi-distant to the two ooze spawns, it gave the red-ooze target time to react and flee, and our ranged dps were able to kill the green before it even reached us... even without our abom slowing it. After that, it was only a short few seconds before the red ooze died its own bubbly death, and we could pour "free" dps into Putricide himself while he was fiddling with flasks at the table. It went fast. P3 was a breeze compared to P2: it was just a matter of keeping the plagued person away and the tanks alive.
With 2 healers, 6 ranged dps, and two tanks, with the above transition strat and a lot of vocal communication to swap off the plague BEFORE it killed its current host (I got a bit rabid about that and started inserting myself into the disease rotation to make sure the host didn't die from a slow runner), the fight went way.too.smooth. Eerie, /facepalm, omgwhywerewewipingonthisbefore kind of smooth. As in, we spent full 4-hour raid nights wiping to him in previous weeks, and tonight, after clearing blood and lower wings, we put 4 attempts on him and had him down. After wiping on the trash to Marrowgar, we pull down heroic Putricide, who has been haunting our nightmares for weeks, on the first night of the week.
11/12 heroic ICC10.
/stares at Arthas and grins.
Edit: I looked back down the list, looks like there are some other 10-strict guilds that have followed our trail in the weeks since our Sindy kill and they have tagged Sindy before Put hardmode, as well. Good job, fellow Sindy-slayers!
Edit2: our turkey gave more detail on our strategy, and even used MS Paint (cheer!). You can check out the strat we used on his blog, here!