<p>Regarding GPA, I think they are looking for consistent grades, and likely they also refer to the information provided by your high school. Once you’re in the 3.7~4 range then I don’t think there is much difference.</p>
<p>However, regarding SAT scores you should note that some scholarships might use a difference between 770 and 800 as a deciding factor. So it won’t hurt to take the SAT again to try and hit 780, 790 or 800, and it might help with scholarships.</p>