Hi,
If you are learning for the exam from the HFSJ book then a lot of people seem to hold, and I agree, that the exam at the end of the book is a good guide to what you will get in the real exam. It appears to hold that if you add between 10 and 20 % to your score for the exam at the end of the book then that is what you will get for the real exam.
So to answer your original qu, No. If you are learning from HFSJ, just use the exam at the end of the book and the
coffee cram exams throughout the book.
Mat