Hi there!
It has been a while since i try to kill Yogg 25 HM without keeper (for the mount). Before 5.4 this fight was just pain in the ass with way too much RNG and needed parfect execution and to be concentrate from the start to the end.
But since 5.4 this boss is now a complete joke to kill, because one of his capability who make this encounter really hard (you know the laser pew pew spam in p2 that put you at 20~ sanity) is now nerf/fix/bug, i dont know. You end up with full sanity in p3 allowing you to full dps boss without turning your back to him.
I made a quick video with strategy in description : /watch?v=slu7amugpD0
If you plan to farm this boss, i advise you to clean boss in 10man (until Vezax, you dont have to kill the needless one like Ignis/Iron Council/...), then get out and put 25man mode.
That's it. Good luck!
In addition, i have some free time atm and i was planning to do some other video about soloboss /raid/dungeon (like how to rush Altairus for the North drake mount / Zul'gurub for the 2 mount / that kind of stuff), and maybe with vocal comment. (I'm french, even if i'm able to speak english without to much problem, i have this special french accent ). Anyway, if you have some critic/notice, do not hesitate to share them.
Bye monkizz'
PS : I also made a video how to solo Conclave of wind, in order to kill Alakir for the mount. /watch?v=By9hvovFQ2M