Showing interest on wait list

<p>So I got wait listed on 3 colleges. I want to send them letter and show my continued interest in colleges. Should I send that letter now or send towards end of the month? </p>

<p>Pros of sending them now, is colleges might think I'm really interested. </p>

<p>Cons: It may not be fresh on their mind when they make decision after May 1st. Please give me your input. </p>

<p>Also if wait listed college offers you a seat, there won't be a whole lot you can do about the FA package they offer you, you have to accept or deny quick. Correct? You can't work with them on this? </p>