<p>In my daughters case, for her UC applications, we decided to send them both as she took the ACT only one time, and we thought it might look funny to just send in a one time test score only. So she also sent her SAT scores, as they were similar to the ACT, and like your mom said, we thought it would look well-rounded. Certainly the cost and hassle are something that you have to consider as well</p>