Shado-Pan Assault rep
Up to 2999/3000 Neutral you can get rep from killing the trash, after that you only get rep from killing bosses.
You can also get 100 rep points from the Shado-Pan Assault Insignia, which can drop from the Sunreaver Bounty/Arcane Trove from doing dailies on the Isle of Thunder or sometimes from the chests at the end of the Troves of the Thunder King solo scenario (the treasure room).
You have to do the Throne of Thunder raid, any difficulty, to earn rep with Shado Pan Assault.
Up to 2999/3000 Neutral you can get rep from killing the trash, after that you only get rep from killing bosses
Additional note: Rep from bosses can only be gained once per boss, per week. So if you kill Jin'rokh in LFR, you'll get the 300 rep. If you come back later that week and kill Jin'rokh in a normal raid, you will not get the rep.
5.3 was supposedly going to make it easier to gain rep with Shadow Pan Assault but that was a false rumor I suppose.
5.3 lowered the reputation requirement on some of the items, it did not make it easier to gain the rep.
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