I passed the 601 exam with a breeze and went back for 602 after a week with roughly 15 hours of study.
When I was taking the 602 exam I found out that it was not a breeze. The questions were tougher than I thought and I was 2 questions away from failing!!! Glad that my previous work experience bailed me out for this.
Well, a pass is a pass, I will take it