Well my guild was going for this. one of the first ones on our server to get it too. im gonna give a tip that believe it or not makes a BIG difference. we found we had really high dps but at the same time we were struggling getting tha second drake down b4 everyone killed themselves with twlight torment from the third drake. once we started doing this we downed it. and now have it on farm everyweek.
so most guilds go about things by engaging sarth downing the first drake killing adds then getting on shadron and killing him.
my guild was always coming up short 4-10% b4 our healers couldnt handle the twlight torment from the third drake.
so we did this. if you have alot of melee dps. when that first drake goes down instead of having melee killing adds put them on the second drake. while the range kills the whelps the melee dps are on shadron. once the adds are down pop heroism and burn the rest of shadron. having the melee dps on it made a huge difference. and we found our guild not even needing cds on sarths breaths because the second drake died so much faster.
its prob not going to make a massive difference if you dont have good melee dps. but that lil tip there was the difference between not downing it. and downing it for my guild.
dont say that this is useless or common sense or anything cuz i know its not. NO strat guide will tell you that.
i hope this helps someones guild down it.