You just need to post your queries here and someone would reply back on your thread. People here are friendly, no worries on that part.

Well , I agree with you that you don't need to slog for 18 hours or for that matter even 8-10 a day to do really well. As far as the GMAT testing the basics of Maths and Verbal, I don't think that's true . That is true if you talk about lower difficulty questions but when it comes to higher difficulty questions , you really need to have good command over the concepts,which sometimes may not necessarily be basic. All said and done, the GMAT doesn't test for becoming a rocket scientist, so it's not difficult but sometimes the questions can get tricky at higher difficulty levels.