Where I come from, sophmores count in regular quota. As unfair as it may seem, sororities want girls who will potentially contribute 4 full years to the chapter. Usually only 1 or 2 sophomores get invited to each sorority. Juniors are another quota, counted the same way regular quota is, how many there are divided by the sororities. Quota is set at 50 + 5 or whatever, meaning 5 or however many juniors. I really don't have a huge problem with the system, but I understand why someone might.