Hi guys, I wanted to share an idea that may be helpful in improving RC. One of my biggest stumbling blocks in RC is freezing when I run into topics I'm unfamiliar with (science and economics, mostly). Reading articles on Scientific American and the Economist have been very helpful to increase my familiarity with certain terms. Another tool that came to mind this morning is Wikipedia.
Wikipedia has a "Random Article" link on the left sidebar, and sends you to a completely random Wikipedia article. I feel like this could also be helpful as a means to gaining familiarity with unfamiliar topics. For example, a few that came up were a description of birds in Yemen, an English journalist and publicist named Derek Taylor, and Secretary of State for Scotland. You may have to click a couple times to find something that could be useful, but some of the topics are really out there... like LSAT RC passages.
Obviously, this can't replace any of the main RC study tools like doing actual RC sections, reading dense articles, etc., but it could be useful if you just have a few minutes here or there.
I actually purposefully take PTs when I'm not completely rested. I know that I'll have too much anxiety the night before the actual LSAT and won't be able to sleep much. Knowing this, I've been making sure my recent PTs mimic this particular test-day condition so I can learn to deal with it. I agree with @ that you should at least try it once. If you do worse than usual, you can figure out what specific weaknesses manifest when you're tired. If you do just as well as usual, then you can have some peace of mind that a less-than-perfect night of sleep won't hold you back. During the June administration, I kept stressing out over the fact that I had gotten a bad night of sleep and I think being preoccupied with this played a negative role in my performance. For October, I know I'm capable of hitting an ideal score even if I've slept minimally.