I'm not sure if this is a bad thing or a good thing? I had more time to answer questions but why didn't I get a higher score? Or did I get the timing down pat, all I have to do now is brush up on content?
It's a good thing. :) There are just so many moving parts that it can take a while for it to show up in your overall score, that's all. You're making progress on the timing and you do also need to work on the content. As you do get better on the content, be prepared for the timing to continue to be a struggle - you're going to start getting a harder mix of questions, and it's really hard to maintain your good time habits as the problems get harder and harder.
So you did figure out multiple reasons why your score dropped on verbal on the 2nd CAT - those all make sense, all would contribute to the score drop, and all are things that can be remedied. And the 3rd CAT did pick back up (though not yet to the overall level of your 1st.)
Am I too concerned with the Prep strategy than answering the question correctly and using my own intuition/stock knowledge?
Possibly. When you're scoring really well from the start in some area, it's even more important than usual to distinguish between your strengths and weaknesses. If you're already really good at certain things, you don't need to switch to our way of doing them - your methods are already working for you.
There will be some areas, though, where you do want to improve, and so those are the areas to tackle with our strategies (or some new strategies, whatever they are).
Have you used your two private 1/2 hour phone sessions yet? If you still have one left, sign up for one now and indicate that you want to do what we call a Post-Course Assessment (basically, a meeting focused on putting a plan together after you're done with the initial syllabus). Make sure that you have a recent practice MGMAT CAT done under official test conditions because your teacher will want to look at that before advising you. (I know you do already; this is written for the benefit of anyone else reading this.)
Then, if you'd like, you can come back here and tell us what advice you received and ask what we think (or ask questions about the advice, etc).
Re: timeframe, we do have to assume that your score range right now is around 640, even though you have scored higher in each section on separate tests. You're looking for a 700+, and 3 weeks is not a lot of time for a 60-point jump. My guess is that you'll probably need to give yourself some more time. But, first, go sign up for that 30-minute session so you can get some detailed advice before you decide.
Oh, I just realized - you might not have any sessions left. If not, then use the below to analyze your most recent MGMAT CAT(s):
http://www.manhattangmat.com/blog/index ... ice-tests/Then come back here and tell us the results of your analysis and what you think you should do based on that analysis. (Note: do share an analysis with us, not just the raw data. Part of getting better is developing your ability to analyze your results - figure out what they mean and what you think you should do about them!) And then I'll tell you what I think. :)