Well. I've now read all the hard copies I own. Just have to wait... yup almost two months to get more...~
Though, considering how long the time between me reading volumes 14 and 15 was, I think I can handle a two month wait.
This makes me revisit my question of if I can handle the wait for a bimonthly manga. To which, still no, as even a single volume is, obviously, more content than a single chapter.