Do you know what the ramifications are for rescinding an ED acceptance? I know for Columbia you need to put down a $5 - $6K desposit and sign an agreement. But would they go as far as to contact your other schools etc.?
Columbia is my first choice, but I don't know how I could turn down say a Harvard if I were to also get in there. I have heard that it helps to apply early to Columbia. I am not trying to game the system, but am curious what the ramifications would be.