My guild just killed lei shen for the first time 2 hours ago qnd we are getting ready to start sole hc progression next reset.
We have really good motivated people, all 110k+ dps (some on 140..)
We wonder what we should start with.. Our setup is:
Tanks: Blood dk, pala
Healers: h pala, r shammy, r druid
DPS: S priest, Lock, mage, hunter, ele shammy
That obviously depends on how much time you needed on jin'rokh and how much you raid each week. Our guild killed jin'rokh after 2 hours of tries and ji-kun after about 3 hours. Both fights are entirely about execution, the dps requirement are really low for both even when 3-healing.
Jin'rokh took us loads of tries, ji'kun took us 13.
Do jin'rohk first and if you get time try ji'kun. Ji'kun is a fight that you can (should) walk into with a plan. Killing it is just a matter of executing the plan which takes a bit of time but as far as heroic bosses go its not too scary.