I have been using Manhattan's Official Guide Companion and I find it very useful that the level of difficulty is specified for each question. I was wondering how exact and reliable this classification is? Sometimes when doing a problem classified as 700-800, I feel like it is more of a 600-700, and vice versa with some 500-600 problems, I feel like they could be 600-700. Just wondering if anyone has had a similar experience or if this is just my perception.
It depends on your level or strengths, quite frankly. There are some sections that were 700+ and I could solve them in 30 seconds. There were other 300 - 600 questions which just left me utterly confused (this happens sometimes in the verbal).
I would say you should focus more on your strengths and weaknesses versus the difficulty level. Trying to guess what is difficult versus what isn't will just mess you up.