I was on the SN2ed schedule as well, though slightly modified. My initial goal was to take the Aug. 15th test, but I wasn't ready, and by the time my re-scheduled date was close (Sept 12th) my studying was showing me that I was capable of a higher score than I previously anticipated, so I said to heck with it and delayed again, currently aiming for scores in the high 30s, maybe higher, who knows?
As for verbal my main tips are to take the time YOU need to read the passage fully - no skimming, no mapping, no tricks, no nothing. You can usually get away with 3.5-4.5 minutes of straight reading per passage; just read it like it's a letter from your best friend about a topic that you find wildly interesting, and answer the questions. Do that and you'll be amazed by how many questions you can answer without referring back to the passage, and how quickly you'll finish the questions as a result. The other tip I'd suggest is that if you're practicing VR outside of CBTs, stop taking isolated VR passages and start practicing them in sets of 7 and time it like a real VR passage. That will give you a much better feel for the flow of the section, because some passages will be easy (6minutes) and some will be hard (9+minutes), so you'll be much more comfortable with budgeting your time if you practice them in complete 7-passage sets.
In case you didn't notice from my scores, PS/BS is my weakness, and I've already taken 14+ full lengths trying to bring them up, with little luck. So, between now and test day what I hope to do is comb through the PS/BS sections of the tests I've already taken, calculate the percentages of which categories I make the most mistakes in (e.g. acid/bases, electrochemistry, whatever) and start hammering those with content review and extra problems, starting with my biggest weaknesses first. I'm not really sure how this will work out, but I don't know how else to improve my score, because taking and studying full lengths isn't helping me anymore.