<p>CR+M at 1560 is very good. There is little reason for retaking SAT1 or taking ACT unless you are aiming at certain scholarships. For admission, 2290 is not going to be different from 2400 in most cases. Nevertheless, ECs are very important for the top schools on your list. You better use your time more wisely to increase your chance for those schools instead of taking SAT1 or ACT.</p>