I might be farming ?-4 for equipment seeds then. The raid boss encounter rate seems really high so this'll be a good chance to beef up equipment. I'm almost out of important stuff to level anyway, unless I premium pull which I'm getting tempted to do. Just need to decide between the new pierce units or slice units (reeeeeeally want Alpinia and more slots on Orchid).
Thanks to the info in the OP I managed to 3 medal everything but the third map on the first try (stupid spinning arrow).
EDIT: Also, anyone else annoyed that the character/equipment sorting seems to reset every time they have one of these maintenances -_-