AbhiJ, can you post the links to those?

B-schools look for a diverse student body. What's most important for people from non-traditional backgrounds is that you demonstrate the impact that you've had on the company and how your unique experiences will allow you to contribute to the school.

It's not a disadvantage.

Practice tests are meant to build your stamina, but the actual act of taking the test won't increase your score. If you're taking a test every day, are you leaving yourself enough time to thoroughly review all of the problems? You should review the problems you got correct to figure out if there was...

Most admissions committees will only consider your highest score, so don't worry about the second test. You should retake the GMAT if you have time and believe that you can do significantly better, and if the average for your target schools is significantly above 660.

The time greatly varies for each person. Manhattan's Number Properties guide contains a lot of important information, so it makes sense that you would spend a significant amount of time on it. Depending on your current level and your target score, you may not need to spend as much time on some of th...

I agree with Jim; they are all definitely important. However, if it's not possible for you to work on all of them, try pinpointing your strengths and weaknesses. Have you taken a MGMAT diagnostic test? If you're already strong in one area, you could skip that particular book or spend less time with ...

No, there's no penalty for spending more time on a question. Spending an average of 2-minutes per question is typically recommended, but you may spend less time on easier questions and slightly more time on more challenging questions.

Apply when your application is strongest, so 2nd round is fine. Just don't apply after that. Also, I think you're devoting too much attention to the number of incorrect responses. It's more important to pay attention to the difficulty level. Lastly, it will be very challenging to increase your score...