Chaos zakum/horntail

Well, there's now a much easier way of dealing with the arms at chaos horntail. Having everyone on one side of horntail and having NLs jump attack the opposite arm makes it possible to kill the arm without having it do anything. Oh, and I just realized that nobody can start on the tail side due to the mid head's fire breath attack stunning for 5 seconds and everything knocking you left. That just makes threaten all the more important.

I feel like I'm being really stupid here. But I can't find Zak body 1 and 2 on Fiel's Extraction thread. Could someone point it out to me, or just tell me the avoid on them?

Probably the same or lower than the 3rd.