Just a quick on the 3 OGs. I know the questions are generally ordered from easy to hard in each section, but I am curious to know (from the instructors' perspectives) if any of these questions contained in the OGs are really at the 700+ level of difficulty. I ask because I would like to know if I am practicing on sufficiently hard practice questions or if they are indeed slightly easier than what I will get on test day, and thus I am concerned that I might be unprepared slightly come test day.
If there are 700+ difficulty questions in the OGs, is there any way to help identify them (aside from just going to back of each section)? If there are not many 700+ difficulty questions in the books, then where can I go to get really hard questions to practice with? Thanks for any advice!