If you have enough i200 and i210 left side pieces you can get away with full slaying accessories. Pentamelds are also a great way to go if you want some extra survivability without sacrificing damage. The the amount of vitality you trade for strength, however, highly depends on how comfortable your healers are, whether or not your group needs more DPS to make the checks, and how well you're keeping aggro.

If you're making it past the double hand check easily every time, then your group probably has enough DPS to clear the fight. I would just play it safe at that point until you're close to the clear.