I fluctuate about 5-8 points, timed anywhere from 155-162. I really do think some sections of certain PT's are harder than others. If your issue is timing, you might be getting hung up on questions too long. If I feel like I just don't understand the argument, I just move on and flag it. I don't hesitate because if I have 6-8 minutes to go back and review those flagged questions, I feel better knowing how much time I have left rather than rushing to answer the last 5 questions which tend to be the hardest ones.

I read the stem first because I feel like I can dissect the argument faster without having background knowledge lingering in my head. But I find myself looking at the question stem first if the question contains a lengthy argument/AC to see if its worth skipping and coming back to later