In terms of timing for your PAT, that just comes through practice. Its important for you to know where you should be relative to the time they give you in the corner. For example, Kaplan suggests that you give TFE and Keyhole 12 minutes each, hole punching and angle ranking 5 minutes each, Cube counting 10 minutes, and pattern folding 15 minutes. But that is all personal preference. I preferred using 10 minutes per section. So for example, lets say I was out of time for TFE and by my schedule, it was time to move on. I would mark C, mark the question and move on with the test according to schedule I set up in my head. In reality though, TFE and Keyholes were harder so even though I allotted myself 10 minutes for hole punching and angle ranking, I wouldn't end up needing it. I would finish the test and have time to go back and fix any question I marked. My point being is your going to move a lot faster once you hit a section your stronger at so don't let the harder questions hold you back from scoring on the ones that are easy and the ones you're good at. All the points are the same and you should discriminate your time against questions as such. In practice of CDP, timing myself like this I was able to be around 23-24. 22 on the one bootcamp test they allow you for free. But on the real deal I got a 21. I wish I bought bootcamp because my particular test was more like bootcamp than it was CDP.
Also in my opinion on the bootcamp reading comp, the real DAT is much easier. I used the free bootcamp test and all of Kaplan's online and I never broke 18 on any of my tests. Not once... On the real thing I pulled a 21 simply reading and lightly mapping. So take the difficulty you have with a grain of salt...at least that was my experience.