Here is a question thats been annoying me, I know if you plan to land at a airport in class D airspace you must take the met vis as the flight vis, but if you are just transiting the zone you can use your own flight vis. So since all the channel island airports are in class D zones but surround by Class A, does this mean since you are transiting the class A zone you can use your own out of the cockpit flight vis and not the met vis?