ICAO codes for Origin and Destination when passing details
Currently when passing details for a FIS from ATC, I just state my Origin and Destination as, for example Nottingham to Carlisle. Would it help you ATC chaps and chapesses if I said Nottingham EGBN to Carlisle EGNC? Am I right in thinking you use the ICAO codes on your flight strips and do you know most of them or can you look them up very quickly?