Thank you for using the timer!
We noticed you are actually not timing your practice. Click the START button first next time you use the timer.
There are many benefits to timing your practice, including:
Try to answer every question to the best of your ability, experimental or not. The GMAT has evolved considerably over the last five years so nobody (other than the test makers) conclusively knows which questions are experimental or not. Please read my thread "Experimental questions having an impact on official scores?" in the GMAT forum if you would like to get some other opinions on this issue.
Don't worry about gaming the test for experimental vs actual questions. You are better off concentrating on each question for what it is. BF has been a hot topic lately, and I would not be surprised if they are actual questions (for points).