My guess is that if they take a limited number of street packages in the May board, they would start with rollover from the January board, then fill up any space they have with May applicants. So the August board should be May rollovers and August applicants. Obviously this all conjecture, but if they're rolling people back then I would assume that boards are "filling up", which means that they don't get more competitive per se, just that some of us might have to wait a little longer for our package to be seen.