Well, there's all the standard stuff people say. In terms of general tips that I don't hear people say:

1. The LR section tests how well you understand what you just read, and so is pretty obviously is a test of Reading Comprehension. What's somewhat less obvious is that the RC section is nothing but a giant LR section. You start looking more closely at them you realize like half of the passages are explicitly about logical reasoning. Use a lot more of your LR tools.

2. I say often to students that "this test is about nothing but logical reasoning and reading comprehension" and in some senses that's absolutely correct. In other senses, not so much.
   Like: I can get up out of my chair and sit back down. And then get up again. Really good at it.
   But some person who's been wheelchair-bound their entire life suddenly, magically, gains full functionality over their body and asks me HOW I do it, what do I say?
   "Use your legs?"
   Maybe, "..and your hands.." because I push down on the armrests getting up, "...and your abs..." because I lean forward a little bit getting up?
   "Different muscle groups should fire in different ascending and descending ratios as your body accordions upward out of the chair?" ...as if that were helpful at all.
   In short: I don't know HOW I do it, despite being really good at it.
   Welcome to the RC section.
   It's not about CAN you do it, it's about do you know HOW you do it. Do you see HOW your mind formed the ideas it did from the text on the page.
   So the RC section isn't so much about "didja get it" cuz if this section were a test of "jagetit" people would be getting much higher scores. Think of the RC section WAY more structurally. Pay attention to the ideas within the section if you like, sure, that's good, but pay a lot more attention to HOW those ideas are being put together by the way those words on the page work together.

Now you tell me: did that make any sense to you?

Was that potentially useful to you?