For my own chapter, we have COB whenever we want after formal recruitment. The purpose of COB is to take women until you reach total, and our chapter was never close to total, nor were any of the other sororities on campus. In any case, we had COB for at least a week after formal rush.
For the colony, normally they have informal recruitment in the Spring, but this year they aren't having that. So, it'll be all COB. We are planning events once a week through the end of March. We need to get 25 more women to charter!!
I did that whole puzzle theme with the Beta Mu chapter last semester, and it was pretty successful
My opinion: Active sisters, if you could share with us your recruitment stories for this semester, that would be awesome! I'd be happy to share those of my own chapter and of the colony!
Good luck with recruitment!