I can’t know for certain or not, but I will say that when reading the books I was more confident than I should’ve been. I understood the concepts and had seen them before, but the way they are tested and some nuances to those topics I would miss on practice tests. So be careful, especially since your time is limited, to make sure you don’t skip over topics just because you were familiar with them. Economics was fairly straight forward, but things like Quant Management and FRA are much tricker once you start taking tests.