Chinos:
Do your self a favor study for the exam and challange it. If you take the course you will learn to pass the exam if you self study you will learn the material. My 11 year old challanged it last spring and he spent 10 times the hours on the material then the course provides. With out studying he got a 70% on the practice exam on the real exam after studying for months and mastering the material he got 92% If the material is new to you there is no way you can learn 100% of it in a weekend. You can learn to pass the exam but you wont have mastered the CORE material.
If you get stumped in your self studying or do not understand something there is always CGN.