Semi related but from athread in the ATC forum and specifically for Dick. This from a US controller who uses that system every day.
Man, you guys make my head hurt with all this complication... You would LOVE the way that we do airspace around here, we treat it all pretty much the same as controllers other than Class B that is... No fuss, no muss <G>...
regards
Scott
What is the NAS rubbish based on?