Should I send all my SAT and ACT scores?

I just got my SAT subject test score back and got a 750 (yikes) on math II. Now my problem is deciding whether I should send this over to Duke because if I choose to send over one subject test score, I have to send over my entire SAT record (which is full of really bad scores).
I’ve already sent them my ACT so is it worth sending over my subject test score (which will include my full SAT record) as well?

Well, Duke require all your test scores so you decide. They will consider your highest sitting.