I just saw seven folks from patronus de fortuna taming gumi. I tamed gumi by myself earlier today (but then abandoned as gumi is not that attractive and i have several sb). I did this solo and its actually really really easy if you can strafe, have con shot keybound, and, and that is about it.
They had a shaman healer, a paladin healer, a boomkin dps, a hunter dps, another hunter dps, a mage dps and a warrior tank. Why is gumi harder for some folks than heroic 5 man dungeon bosses? They treated it just like a tank and spank and then when gumi got low enough the tank allowed gumi to kill him (distracting shot and aggro management is too hard) (no one attacked but the hunter while the warrior died) and then the hunter tamed.
They tried earlier with the boomkin, two hunters, one resto shaman, and the frost mage... but gumi killed them all. What part of spamming concussive shot on cd and being in aspect of the cheetah is so hard?
I am still a bit mystified as to how gumi caught up to them so many times. The other two that have ranged attacks are at least a bit harder.