Please forgive me if this has been asked here before.
I'm going through the MGMAT strategy guide and have finished all the chapters prior to the advanced section.
Question: Is it necessary to study the advanced sections or should I just skip over or maybe skim through it? Reason I'm asking this is because I find most of the stuff in the advanced sections more than what one might need for GMAT SC.
Needless to say that I'd like to get all the SC questions right on the GMAT.
Answers would be highly appreciated.