<p>momto2013 - The kids change a lot over their senior year. The opinions they have on July 1st change quite a bit by May 1st of the senior year. So if they are locked in by an admission in December, it is not the best outcome. Most people apply to a reach school ED in order to have a better shot at the school but studies have shown that a lot of people who have applied ED are not as happy with their selection by the time they start college. So it is better to evaluate several schools first if you want to do ED so you are certain that is the school.</p>