I disagree. To me, much more important than the size of the girls who rushed me were their personalities. If you can talk to me and get me engaged, then you should be rushing me. If she's one heavy girl in an average sized sorority, her presence is not going to turn off girls from joining. And frankly if it did I wouldn't want those girls to be my sisters anyway.
The DZs at DePauw should have just shut up and taken it too if they really cared about their chapter, right?