<p>The point is that if you submit an application with low test scores, they are going to make an initial admission decision (admit, no admit, admit to different campus, or ask for later test scores/grades) based on those scores. So if you are worried about a straight no admit or admit to different campus, you will have lost your chance and you should wait to submit until you have a stronger application. There is really no reason not to wait if you are already planning to retake a test or you think you will have better grades/GPA after the fall semester.</p>