self-reporting SAT II if I'm already sending ACT? NYU

Hi,

I was wondering if I could just self-report my sat subject test scores on my common app if the schools i am applying to don’t require sat subject test scores to be sent.

For example, I am applying to NYU, in which the fullfillment of the score policy will be through my ACT score. I also want to submit my SAT subject test scores, but I don’t know whether or not to self report.

Another school I am applying to is UMichigan, which has a strict testing policy but doesn’t require sat subject tests for the application. Should I send the official reports anyways?

Thanks.