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:
I just can tell you that I have too much material at home but I screened it and I never noticed any matrix oriented problem.
Furthermore, I took the test 2 months ago and there was no matrix at all.
Anyway if some of you guys have insights on this point they are welcome !