Hello,
TheIntegrator. It sounds as if you have thought this process through and are studying in a dedicated and consistent manner. To answer your question about when to take a CAT, you will probably get different advice from different members of the community, even tutors. I myself think it is wise to preserve them, especially the official mocks, while you work on building your understanding of theory (in Quant) and technique (in Verbal). Then, perhaps eight weeks out from the exam, I would take my first CAT to establish a baseline. A week or two later, I would take another. Basically, in the weeks leading up to the exam, I would make sure I was either taking a test or studying, learning from my previous errors on mocks, to take another CAT. In this manner, you will always be on your toes, and you will likely start to see your scores align, giving you a greater degree of reliability in the results. If you take a test too soon, it might reveal nothing more than that you are not ready to take the exam, and then you will have wasted valuable questions, not to mention that such a result could deal a blow to your motivation.
About the only part of your prep plan that I am unsure of is the Economist program. That is, I have never worked with someone who has used it. Does it coach you through
the Official Guide or draw your attention to specific
official questions, or does it use proprietary material instead? I ask because it is vital to practice with official material to get a feel for the way the actual test will look. Third-party companies can approximate official questions, but they can only get so close, and it would be a shame if you were an expert on answering, say, Kaplan questions but then felt somewhat unprepared for the phrasing and passage types of GMAC™-generated material. In short, I think it is fine to practice with outside material. GMAT Club itself offers a myriad of top-notch Quant questions. At the same time, I would make sure I always centered my studies on official material to avoid any potential feelings of the rug having been pulled out from under me.
Best of luck to you, however you go about your studies. Just stick to a plan and set clear-cut goals for integrating those CATs. If you have any questions at any point, feel free to reach out to the community.
- Andrew