We do this in a way so that ppl hardly need to move at all, esp the tank and meele. Dunno if its been mentioned before tho.
The tank starts tanking General where he stands out of combat, his aggrorange is small enough to actually slamm him with your shield before he hits you first.
Ranged and healers stands in one position at a specified range. Whenever a shadowcrash is casted, all casters and healers in the group knows where its gonna land, thus they all move out, and then move in again after the crash landed. If shadowcrash is coming ppl move to the sides, if someone gets the mark he runs backwards.
Since this will mean healers will be moving at the same time, we have the healer who is healing the MT stand under the boss, to avoid having to move.
This way ranged can start P2 with a shadowcrash, we use one tank for this encounter so not having to move is really good for keeping things in order.