Right now I'm trying to balance Crit & Haste instead of favoring either of them. Then again, so far H bosses have only dropped an endless stream of Haste gear so I'm reforging all available Haste to Crit.
On Dark Shamans HC: we run the 3/3/4 tactic, with a Hunter/Ele/Fire Mage and me as DPS. I try to time 2-3 conflags on the slimes, but in all effect they die before I can cast an Incinerate at them. I did some tries yesterday with only bothering to FnB conflag and then snipe (Havoc'd) Shadowburns on the boss. Is there a better way to deal with them from my PoV?