<p>Asbury:
Your question gets discussed every year. A couple of the high level points I recall from previous discussions and articles on this are:</p>
<p>1: A school really doesn’t know which waitlist candidate attributes it will favor until it begins to understand the composite makeup of the accepted students who choose to enroll there. </p>
<p>2: No one outside of of the admissions committee discussing waitlist candidates will know what those priorities are.</p>
<p>3: Flooding the school with repeated information or with new recommendations is not well accepted. Usually a one page update from the student with a confirmation of stated interest and any new relevant information is desirable.</p>