My examiner was big on knowing what the A/FD had to offer. I learned from him, just because an airport on the sectional doesn't have tick marks...does NOT mean it is without av gas...always check the A/FD if you have a question about anything airport related. Knowing airspace was a big topic, and cloud requirements....152( thousand above, 500 below and 2000' away from. Sometimes Class C or D goes to class E...nice to know the times of Tower services, found in the Airport/Facility Directory. During the ride, when he asks you to DIVERT...get out your plotter and draw a line to named airport. Can be tricky when it comes down to it so get some practice. For the most part, the commercial ride was fun and without any big surprises. Good Luck!:rawk: