Almost my entire preparation for GMAT has been based on the Kaplan quizzes, workshops, and CATs. The GMAT OG somehow just magically appeared in the mail the other day, I didn't order it. Maybe KAPLAN ordered it for me.
I was planning on making the last 2 weeks of studying based mostly on the Kaplan quizbank, because it is highly customizable, and have been spending about 1.5 hours a night doing 30 questions and reviewing them meticulously. I'm getting about 80-90% correct on everything in the easy/medium range. I haven't broken into hardcore 10 question sets of difficult yet, as I'm trying to explore the vast range of potential question types.
My scores on Kaplan tests ranged all over from mid 500s in the beginning to consistent mid to high 600s and once a 760 (I recognized a lot of questions from prior CATs - LAME!)
Do you think the quizbank approach is a good strategy with some addtl CATs thrown in? 30 questions a night isn't taking me very long, if I have the time, do you recommend more? I'm taking the real GMAT on Jan 29th.
Oh, also I got 680 and 660 on the GMATPrep CATs - if I take them again, will I get a lot of repeats?