If you're good at recall, I would highly recommend reading through the KA notes and making flashcards for every single term- you don't need to study them, but making flashcards reinforces the material. It's amazing how much just seeing all those terms can help. On many P/S questions, the right answer is simply a matter of recalling the general idea of a particular term. Having seen all of those terms before is invaluable for this section.
Nothing wrong with a 128, but if I were to go back in time I would have hit the definitions really hard the last few days before. I ended up seeing a lot of terms I had NEVER encountered before, or if I had I must have completely forgotten. If you can cram terms, you'll at least be able to use process of elimination to up your score.