Hi All,
I am glad to be making my first official GMAT post as I embark on this journey in search of the 800

. So I purchased the Kaplan Premier and the OG V12. I am currently working my way through the Kaplan Premier (started about a week ago). I also happened to obtain a copy of OG V9 (found it in the junk area at my uncle's house when he prepared for the GMATs). I was wondering if anybody here knew the amount of overlap between the two versions and if any material on the OG9 is outdated. If there isnt a whole lot of overlap then It would be a valuable resource for actual GMAT questions.
Any help would be appreciated.
Thanks