In 10 man, I've done 3:13 fastest on Patchwerk, I'm pretty much solid the top 4 dps though. Like Alemi, I do consitent 3.6/3.7k dps without flask.

Gluth we always kill before the second decimate. I usually start max range on gluth, when first decimate comes I keep dpsing gluth, when zombies go close I drop magma totems and move close to Gluth (melee range), keep dpsing gluth, when zombies come, if they arent dead yet, round robin thunderstorm while dpsing gluth.

This way we kill him well before the second decimate.

Mage and moonkin do the kiting for us.