Having the 5-set bonus from hunters Giantstalker set equipped can cause King Gordok and Cho'Rush to have linked aggro tables which obviously causes problems when trying to solo run. This simple Weakaura will both warn when you have the set bonus inside Dire Maul and remind you to re-equip when exiting.
To configure the re-equip aura: Click the "Outside" aura > Trigger and change "Equipped" to haw many peieces you got in total.