Your timing map is off, and it looks like the differences would be causing the timing problems you describe. Here are my recommended changes:
You should look at the time when you arrive at the question, not when you complete it. You can see that you have about 18 minutes to complete each 10 question section, but the first block only has 9 questions so the time is 16 minutes. If you can follow this chart, you should have adequate time to complete the last few questions instead of having to rush (and guess) to the finish.
If this chart doesn't seem to work, you can try a chart that is driven off time instead of question:
The best way to improve timing is to practice "timed sets". These are the groups of problems referenced in the previous post. You can complete a set of the same problem type making sure your average time is in line with the recommendation (i.e. 10 SC problems in 12:30). You definitely should complete sets that include a mix of all problem types, making sure to stay within the recommended average time (10 problems in 18 minutes or 20 in 36).
In timing, practice really does make perfect. Good luck!
Kyle Widdison | Manhattan GMAT Instructor | Utah
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