Ya, it would be nice if it was possible to "spawn" the same NM multiple times without having to wait for one group to finish. Since Confrontation seems like something where if the alliance dies the NM will depop, I don't see why it wouldn't be possible to allow for 3-6 groups to be able to mess around with the same NM. In abyssea if an NM is taken one could just farm for time or leave the zone and come back later, however for the way Dynamis is setup currently this isn't possible.

As it looks now if an NM is being worked on and we're only given 1 spawn option per NM the zone itself will be pretty chaotic and prolly create a lot of disgruntled players unable to fight the NMs they want cause another group was going after the same one, or a smaller group is slowly killing it.

Though as mentioned above if Confrontation works in the way mentioned in the notes I would imagine that there should be no problem to just allow for the mob to be spawned multiple times. This way multiple groups will be able to engage the same NM without feeling like they are being blocked off because another group got to it first or another group has it and is killing it slow. Since time in Dynamis has been shortened by an hour and a half, I hope you take into consideration how precious those 2hrs will be for those who like to plan ahead with what they want to do.