With SMN AF+2, any kind of perp staff (NQ, HQ, fay, bahamut or magian elemental staves) can reduce elemental spirits current perp cost to like 1-2mp per tick if you summon that spirit on anyday. Effectively negates on the corresponding day/weather. You'll even see a refresh of 1mp per tick if you continue to deck out refresh gear, like the moonshade earring or sterc subligar with refresh augment. Spirits are perp cost effective to use if you're desire to use them and that was a major set back to you.