Retaking SAT subject tests

So I got an 800 on biology-M and a 790 on chemistry. Obviously there’s no point in retaking the biology test, and chemistry is not my strongest subject, but I checked the percentiles on the June chemistry test, which notes that a 790 corresponds to the 87th percentile for that administration. I’m shooting for Ivies (Yale, etc.) so I’m not sure how competitive a 790 is. Would it be a good idea to try to snatch an 800 in October, or whatever?

No, your scores are amazing. Congrats!

No don’t bother taking it again. Anything 750+ is excellent