I was recently in a Blackhand PuG, where in phase 2 all ranged and healers stacked in one spot in a corner and a Demolisher was tanked between the boss and that stacking point. With all cooldowns saved for this point, the boss was nuked down, with almost no movement involved. It worked and was beautifully fool-proof.
Does anyone here know if this tactic is described anywhere? I would like to recreate this strategy, but I did not pay enough attention in the PuG to remember where to stack and which demolisher was optimal.
Thank you for any help.