I live in California and am applying to mainly UC's, Berkeley, UCLA, UCSD, UCSB, and UCI particularly.
None of the UC's require me to send in the subject test scores, especially since I am planning on majoring in Communications for now, but I've heard it can help.
I have a 4.0 unweighted GPA, 4.367 weighted, and a SAT I score of 2120 (CR: 690, M: 730, W: 700)
My subject test scores are:
Math II: 570
US History: 630
I would take them again in October, but I studied for those subject tests and since it'll have been months since I've taken the courses, I don't want to risk the scores going down, which would be even worse.