Hi,
I am looking into which GMAT prep course books to use for my studies and I have narrowed the list down to either
Manhattan GMAT or Veritas Prep. Both seem to have their merits and - because I have plenty of time until I plan to apply - I was thinking about studying through all the books for both of the programs. However, I have read in numerous posts that you should stick to only one source when studying and have a few questions about this:
1.) Why should you only stick to one source when learning how to solve GMAT questions (I understand that for practice, the OG is the most accurate and valued)?
2.) How is the method
Manhattan GMAT teaches you to solve GMAT questions different from how Veritas Prep teaches you to solve GMAT questions?
3.) What are the negative effects of attempting to learn from both Manhattan and Veritas?
Thank you.