Hi woohoo921,
If you are simply looking for additional retired Official Verbal questions for practice, then the books that you are referring to are essentially identical. That having been said, while the OG books are great sources for practice questions, they're not designed to teach you Tactics, patterns or the little 'secrets' behind the GMAT. If you're not scoring close to your Score Goal yet, then you would probably be better served by investing in some new Course-oriented materials.
It's been a little over 2 months since we last discussed your studies. How have you been scoring on your CATs/mocks since then? Is your Score Goal still 700+?
GMAT assassins aren't born, they're made,
Rich
Contact Rich at: [email protected]