I read BB 5 times prior to writtens. Did not attend the course. Did very well. I think the book really covers what you need to know. If you know the book, you will do well.
As for Big Red and Orals. The book is just a little different from Big Blue. Attended one of the weekend courses. It was good, I am shakey on expressing myself orally. So it was good practice.
Not sure yet if I passed. I felt uncomfortable after orals. Still waiting to hear. If I did poorly it was not for a lack of knowledge, but for the inability to express it. Not sure if any course can really help with that. If I failed, which is a strong possibility, it will just mean more practice the next time.
Good luck.
Tuck