I don't really have a problem remembering what I read, or remembering where details are located in passages that I understand. However, does anyone ever get a sentence and/or passage that they just flat out cannot even discern the main point of?
***WARNING: EXAMPLES FROM SPECIFIC PREPTESTS TO FOLLOW***
(from PT 35): For example, I completely missed in the Ronald Dworkin and Legal Positivism passage that Dworkin advocated a a middle ground between legal positivism and natural law. I was able to get many answers right by locating specific words from the passage, but my lack of understanding made the process more tedious than I think it needed to be. I think the reason for my missing this main point was that the key sentence that gives this away - the first sentence - was 1) the first one, leading me to gloss over it quickly, and 2) very convoluted and long.
(from PT 68): Another example was Passage A of Preptest 68. In hindsight, this shouldn't have been that bad, but I had trouble visualizing the overinclusion/underinclusion vs. enforcement/non-enforcement relationship. As a result, I was not able to see the relationship with the second passage, which mentions one specific example of discretionary enforcement.
The above situations are hardly rare, which is why I wanted to appeal to the impressive LSAT abilities that I've seen in this forum to see if someone can provide a solution.

Therefore, how do high RC scorers approach difficult to understand sentences and passages in RC without sacrificing time? How do you answer the questions quickly without marking while you read? Would appreciate any tips/guidance!