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If you are also a big user of Analyst Forum or Reddit like I was, chances are that you have come across S2000magician.
Throughout my study for all 3 levels, whenever I felt that a knowledge point was not explained clearly in the curriculum or had doubts about a practice question, I could almost always trust to find a clear and intuitive explanation by Magician on the forum. You can tell he is genuinely passionate about helping CFA candidates to succeed and he really knows the stuff inside out. However, I only paid for Bill's services for level 3, because I realised that the level of understanding for the material required for L3 is at a much deeper level, but the practice questions from CFA official and other 3rd party providers were inadequate.
I purchased the L3 membership, the command word guide, and all 5 mock exams and a grading session. I genuinely enjoyed reading the articles when I hit a wall with studying. And his mocks were the best out of all the 3rd mocks I...