The vast majority of the time in the required classes has been a complete waste. Let's face it these classes were created to make jobs for people. There have been a few classes that were productive. Fast rescue boat and the medical classes were useful. BRM, Leadership and Management, ECDIS, GMDSS, VSO and ARPA were not very productive uses of my time. ECDIS, GMDSS and ARPA are specific to the particular equipment. All that is required in these cases is to RTFM.