I wish informal recruitment was less common at UMD. All of the chapters do it every fall, though the number of spots available in each chapter varies. It's because quota x 3 is only in the 60s (we have spring formal recruitment), whereas total is 95. So each fall, an average chapter would take about 10 new members. It might be fewer if they didn't have very many seniors graduate, or more if a chapter is small, has withdrawals, or has a lot of seniors graduate. Last fall, one chapter took 4, and I know some had around 30 spots.
The problem is that because fall informal is so "established" as a way to join a sorority at UMD, lots of PNMs will just do fall if they don't get what they want in the spring, because every chapter does fall. When I was flyering right before recruitment, I had a girl tell me "Oh, no, I'm going through in the fall".

NO! That's not how it's supposed to be!