@force5 I had the same problem with RC. Couldn't get them right or took too much time maybe getting them correct going back and forth. I finally decided to start taking notes. I hope the below information helps.
My question is What can be done?--> Just keep practicing on note taking on RC questions (Kaplan Premier seems to have a good bank in the book so you don't waste OG questions). The more you practice the better you become, and then your brain starts to naturally starts to process the information this way. I am actually starting to notice words and see how a particular question might be formed.
Should We Use Maps? I don't know what you consider "maps", but if its not working and you can't use it try something new. My technique isn't really mapping.
To help you out I took pictures of my notes form some OG questions. Feel free to view them here:
https://gallery.me.com/adrianjank/100003
The map can't have all the facts.....--> No, but a lot of the facts can be dismissed. Whats important is the summary of the facts, or truncating lists of facts, recommendations, observations, etc.
Summarizing
For example if you look at my notes for questions 50-56 The "However" Section lists a summary of "Factors Affecting Employers", i.e "Product Demand" and "Labor Decrease Bargaining Strength". In this case I noted where i saw them for quick reference just in case i get a detailed question about one of the "affects". These type of "high level" facts almost always appear as supporting idea questions. These notes allowed me to answer question 51 easily--> the act of taking the notes really allows information to stick
Truncating
In the last piece of my notes I truncate a list of facts/recommendations, etc--> "Gov't Should consider Benefits" --> The sentence tells you a list of something is coming (in this case recommendations). I shorthand the first in the list and note where it occurred and i don't read anything else after it. Theses list almost always appear as a supporting idea questions in the form of "Which of the following did the passage site as" or "All of the following were sited as...EXCEPT"
Sure enough question 56 asked "All of the following...." I knew the first one, looked at my note on where I truncated read the rest and moved on.
I used to struggle with supporting fact questions, with note taking these questions are now automatics.
I hope all of this helps!