I am really not arguing with you, just explaining what I experienced and what is being said.
I think the 67 number is being bantered about because no one ever heard the number 76...until I heard (read) it here. All chapters were told on pref night that quota was 67 + a possible 13. Hence, the "word" on the street that quota was 67. Bid day arrives, membership chairs read off the lists, note that they have several (what they consider) quota additions, run off to greet pledges, and never hear what actual quota ended up as.
It probably can be argued that it doesn't even really matter what the actual number is, but people always ask what quota is and the source of the info is what the chapters set their A list at, because, as far as they know, that is quota.
Either way, it was a good recruitment, chapters took more girls this year than last, and I am still lobbying for another NPC group to join the U of A!