Should I send both ACT and SAT Scores?

My ACT:
35 Composite Score
34 - English
34 - Mathematics
34 - Reading
36 - Science
29 - English/Writing (6 on essay)

My SAT:
2320 Composite Score
800 - Reading
750 - Math
770 - Writing

Would I benefit from sending both or just the SAT?

No need to send both. They are roughly equivalent.

If you are applying for a STEM major, send the ACT. Otherwise send the SAT as your ACT English is a bit of an outlier.

They are equivalent but I recommend sending both to show consistency

Since your scores are so good, sending both would be fine (and some schools require applicants to submit all testing results), but if you have a choice and want to pick just one, I’d choose the SAT (because of that ACT English/Writing 29).

Send both!

Send both to show balance?
ACT for the Science and SAT for the Reading/Writing.

Why not send both?