Should I take the new SAT?

Hi so right now my SAT is a 2160 superscored (630 reading, 780 math, 750 writing). I’m planning to apply to Stanford REA (mostly because there is competition at my school who are probably applying to Stanford as a regular decision candidate). I’ve taken the old SAT twice now, but should I take the new SAT once because I know that 2160 is not such a competitive score. Or would it be too much for Stanford if I took it three times? I suppose it does make it much harder to judge just because this year is that awkward year where my class had the option to take both the new and old SAT…

Just for additional information, my ACT composite score is a 34.

The 34 ACT is currently your high score and the one Stanford would use to determine admission rather than the SATs, and retaking a test when you already have a 34 ACT sounds like time that would be better spent preparing for and taking a couple of SAT subject tests, which Stanford does not require but does recommend.