The colleges that I am applying to that have all scores/unclear policies are Stanford and Cornell. For Stanford, I received an official response stating that I can use Score Choice for SAT subject tests since they are only recommended and not required.
For Cornell however, they state that they do not participate in Score Choice, but they only require either all SAT or all ACT scores. In addition, their policy on subject tests is also vague (some majors require certain tests, but it does not mention if they want all scores). So if I send none of my SAT scores, it could mean I am using Score Choice even though I am fulfilling Cornell’s testing requirements.