I too am a little leary of no dkp as many still want crap from those bosses and may lose sight of the dkp purpose if they think none is awarded, especially if they have none or little, and have a hard time going on other nights.  I would like to suggest a reduction in DKP, until the whole instance is on farm.  for example: hakar = 2 dkp, tiger, panther = 1, rest equal .5, then once we down hakar 5 times, it moves to hakar=1, panther, tiger = .5 and rest none.  basically moving the guild out of zg, and onto new bosses such as aq and ony.  cause as we master zg, we will be able to do zg with fewer in fight, and faster just as if it was a scholo or strat run.  But I caution that we are not quite there yet.