I reviewed Columbia's policy on standardized testing (here: http://www.studentaffairs.columbia.e...styear/testing
) and you really should not worry, OP. They only look at your superscored SAT or highest ACT. They don't consider the other scores, though they ask that you send them in. You got a 2330, which is very high for Columbia, so you should relax and follow their instructions. It would suck if you used deliberately violated their admissions rules and got yourself rejected, when you would otherwise have ben accepted!