One of the guilds I'm doing 10-man ToT with started heroic Ji-Kun last week and our DK tank is getting his crap pushed in. He is tanking it with a pally tank (me) and I don't have any trouble taking up to 4 stacks. I can take 5 if I need to with a cooldown. He just got destroyed on Tuesday and if it continues it's going to be hours of him dying when he only has 1 stack of the Talon Rake de-buff.
What cooldowns should he be using for Talon Rake?
Does he need to glyph a certain way for the fight?
Any help would be greatly appreciated.