I don’t know about that, but something my son learned the hard way (at a different university though) is that for guys rush starts WAY before formal rush. If your son is interested in a fraternity it’s important that he get to know the guys in that group before rush starts – ASAP. One of my daughter’s guy friends at Elon didn’t get a bid because not enough of the guys knew him. The guys who knew him loved him, but there were too many who didn’t know what they were voting for and didn’t want to take the chance. So make sure your son knows that it’s important to hang out at the house, watch games with them etc. and get to know everyone if he wants to keep his options open.