Orbs shouldn't be an issue as I have a ton of everything. I'm a hoarder so only ever hone what I need to clear stuff. Likewise I have yet to use a 4* mote yet although rather problematically I do not have enough 3* motes to dive his BLM tree and also I never bothered clearing the Meltdown Nightmare (because I never used mages)
Someone elsewhere said spamming C1 was better than using C2 + Meltdown. That has to be BS right?