One of the reason I started the thread with this RC is due to its complexity it's a classic example of an RC where the main purpose is weaved into similar yet different information such RCs will have lots of instances mentioned and one may tend to read over them considering them unimportant. The fact is questions are framed from these similar looking yet different instances mentioned in the passage. To sum it, try and pen down very short notes while you are reading it and identify the main differences.
You can post what worked for you, there are always better ways to approach an RC
PS: Avoid quoting long posts

quote only the relevant part, it's easier on the eyes as well