So I am taking the test in June, in London. I brought all my prep material with me when I came over. I have both bibles and about 40 tests. Testmasters offers a class in London for the June test, which I am planning to take. Thet said that if they do not get 3-5 people to take the course, they will have to cancel it. So I am studying using the bibles and the tests I have. Testmasters recommends not studying before taking their course, but I kind of have to because if I find out they canceled their couse, I would lose months of study time. So my question is has anyone studied with the Powerscore Bibles and they taken the Testmasters course? Did the studying with Powerscore confuse you when you got to the course?