honestly Dan's mock exams are much fuzzier compared to K&B's mock exams. While I scored around 90% with the K&B mock exams I only got 50-60% from Dan's mock exam. And that was like a punch into my face. Fortunately I still had one week time and did several days only Dan's mock exams.
So my advise is, to pass the exam do all K&B mock exams as your foundation and if you want a high score do Dan's mock exam on top of it.