I never really toyed around with figuring out which of our burnables stack well. Should I spread them out or dump them all at once during a named fight? I usually box bard main with mage and necro boxes, and very rarely ever raid. If a few of them block/over ride benificial portions of others, id prefer to spread them out to maximize the efficiency. But if its better to just full out burn them all at once, then thats cool too.