Grateful for the practice exams. No practice tests is perfect but Whizlab's main point isn't about just giving answers, but the actual link to why the answer is as such. This forces (i hope) us to think and is several steps ahead of the usual PDF + answers.
With that, it does not matter that only 10-20% are exact questions. I'm so over-prepared that I took 30 minutes to clear my exams the 1st time. Well done folks.