Expert Global 15 GMAT focus mocks

It is a really great product for the GMAT preparation. Most importantly, compared to other prep products, expert global offers an amazing content at a very reasonable price, helping GMAT aspirants in multiple ways. I am fairly certain that the focus edition questions are really great and will help aspirations to ace the test.
The 15 mocks help the aspirant track his preparation from one mock to another and analyze each area with attention to detail.

Since the new data insights section has been a challenge to most of them. May be the expert global experts can suggest on how to strategize this section while managing the time and scoring the most on this section