I'm wholeheartly with Gurpmeister here

anyway, to whoever thinks WHM is still a must because of AoE heals even if gimped, just because SCH only has Whispering Dawn at disposal and its 60s cd
dual Sch can covered that with 2 WD, there will be only 18second a minute that your party don't have AoE heal
also, if both SCH actually do communicate and timely executed, there will only be 9s per 30s downtime which Succor can covered that more than enough

again, the only real need for WHM is where AoE spike fast and you need to huddle together to eat CureIII