Sunday's dynamis-jeuno run was my first run in a while, but i was doing some browsing on sch as support for crowd control in einherjar and thought it may be applied to dynamis in situations with massive links. Though sch isnt a great sleeper, having only tier 1 sleep available, it can be used to graviga (or bindga) the slept mobs so that when they wake, it will be much easier to sleep them again. I dont know how the resists for dynamis mobs are like so if a rdm or anyone else w/ experience can chime in here and say what they think that would help.
Also I was asked earlier if sch could silencega and they cant; same goes for any white magic enfeebling spells (slow/paralyze).