VIEWSTAMP is a trademark. I wouldn't go into any more detail unless you want a legal problem.
I hate science because I refuse to assume that a discipline based in large part on the continual scrapping and renewal of ideas is unconditionally correct in a given area.
I learned majority of the materials covered in RC Bible from BP. Personally, when it comes to marking the passage, I think BP does a better job than RC Bible (way too much markings). On the other hand, RC Bible's analysis of each passages covered is impressive.The book heavily emphasize their VIEWSTAMP technique, which I think is the most important thing that test takers should be aware of. I'm currently re-reading chapter 8 as it contains great information.On the downside, I think they copy-pasted a good portion from LRB.
Don't start getting negative now! You know you're going to kill this thing. Just focus on that.