I have tried 4 hunters and a paladin (lvl 12) and while it looks pretty effective it wasn't that much fun for me. While the dead zone looks like it can be avoided it just is annoying (together with the /follow bug).
The last couple of days I have noticed something on my 2 lock 2 mage 1 priest group farming zg: The DDs are usually oom after a couple of mobs while the priest is at or near 100%. This might change when i hit the BC instances and the mobs start hitting harder but I thought about dumping one of the mages and adding a shadow priest for mana return for the DDs, shadow vulnerability and decent dps (even backup healing when needed). I am not going to do that because the last thing I want do do right now is level a priest to 4x but I think I whould be a pretty good choice for a 5 man clothy group.
Bunny