I did EK passages for picking up speed but that was it. At first I took the time and read/answered all the questions with 100% accuracy. It took forever.
Then I tried different techniques to answer the questions, and picked the one that worked best for me.
Then I would give myself 15 minutes, and then 13 minutes, etc.
In the end I knew that I needed more time to answer the questions, rather than reading the darn thing because I had to go back and read parts of the passage again anyway!
So 1 - 2 minutes to skim, and then 1 minute for each question.
I've heard that EK has similar question asking styles as AAMC, but it is not as difficult as AAMC. People recommend doing BR instead (the diagnostic verbal tests) even though there's only a few.
In regards to your question, I think you should focus on trying to look for either key words like "but", "however", etc... and highlight those words/ words that help give you the main idea. It might help you speed up your reading. You should also try to read news articles and time yourself. I heard that NYT and Economists are the types of stuff on AAMC.
I'm not at a 10 yet, but these techniques helped me bring my score up from a 6 to a 9 (which I feel is a good improvement - almost there!)
Whenever I read, my eyes move in a zigzag pattern, and I try to capture main words, and highlight words I don't really understand (because there will probably be a question about it). I try to compartmentalize what each paragraph was about and take literally 5 seconds to kind of summarize the passage in 1 sentence, including stuff like author seemed angry, author is for blah. Don't waste time writing down what each paragraph is about and don't waste time trying to find which passage is "easier" or "harder". They're complete time wasters. AND even if you don't really get what's going on in the passage, the questions help you figure out what's going on most of the time anyway.
Sorry, this whole thing is super jumbled up.