Books for SAT?

I have managed to score 1430 on my second SAT Attempt, (did CB papers, Princeton review SAT Book and KA).
I need to bump it up to 1520 (preferably) for the October 6th Test Date. I started practicing on UWorld (So far so good), should I buy the Kaplan Practice test book (how accurate are they?)? Any other methods to prepare for the upcoming SAT?

I’d give the advice to focus on using the real materials, CB has great practice tests. You should keep reviewing your mistakes on those.