I submitted the wait-list form when I was notified of the 4th round decisions. I received the "wait-list interest" email just a few days ago and replied to that as well. I did happen to see my the decision date change to May 28th in my account, but I did not submit another wait-list form, since I wasn't notified of the new decision date. If that makes any sense...
Posted from my mobile device
Posted from my mobile device