Question about taking SATs more than once

<p>So I took the May sat for the 2nd time trying to do better than a 2270 from january (800 M, 720 CR, 750 W0). I mainly wanted to get my critical reading up. </p>

<p>But After looking at some of the people discussing answers on here it looks like i might have got between 8 and 10 wrong on the reading. Would this drop look very bad (cuz when i got a 720, i only got 5 wrong)? However, I do think I may have gotten an 800 on writing so I was wondering if it was important to cancel my scores. </p>

<p>If it helps, Im interested in schools like Columbia, georgetown, Johns Hopkins, Upenn, and other similar schools. would a drop off like this affect my admission?</p>