highflyer27
If you're anything like me most of the stuff you've read, understood and forgotten by the next chapter.
Once you get on the brush up you'll find that 8 hours in the class room and 5 hours in the B & B every day is enough to bring everything flooding back.
As kissmysquirrel said they will also iron out any problems such as gyro's.
You'll be amazed at how much you know after the two weeks compared to before them.
Good Luck