I'm doing decent in VR and PS sections, getting 10's and 9's (also some 11s) . But BS is killing me, highest I got so far is a 8 (Im only getting like 3-6 of the orgo q's right). Remember for PS and BS its not just memorizing, you also have to be able to master the passages. I guess Im not a good person to give advice for the BS part... LOL.
As for the VR section, best thing to do is read the passage and try to grasp the main idea. I recommend getting the EK verbal book, it has some great tips. Also most of the q's for VR you can get the right answer by just looking at the question and going thru the choices.
I you haven't tried the AAMC tests, take some they are the best predictors for your actual scores.