As one of the voices of Scottish Information I always ask an aircraft as it coasts out over the water to report their SOB. My thinking is that it is one thing less to ask when he calls Mayday 5 minutes later.........again my thinking is if an aircraft ditches and the rescue services arrive on scene and find a single body floating they will know if 2SOB reported to continue their search.
Funnily enough as above a few years ago whilst talking to a regular that flew from the Isle of Man to Castle Kennedy the response was just myself and 2 sheep!