<p>"Suppose you accept the ED offer, but not withdraw your other apps, since that seems possible from the above discussion. Later you get accepted to a better college with a better finaid in April, can you get out of the ED bond citing inadequacy of funds? "</p>
<p>When applying ED, you agree to withdraw your other applicants right after acceptance. The exception is that if financial aid isn’t sufficient, you get some time to talk to them and try to work something out. However, those adjustments end well before April, and if you worked something out, you have to withdraw your other application. You can’t leave the out in case you get better offers.</p>