CASA brought in Multicom with good intentions trying to relieve frequency congestion, amongst other things. Sure, it's not not working but you've created a system whereby highly paid controllers now have to take over FS duties. Frequency separation! What rubbish! You throw around names like Angus Houston, but what does he know about civil ATC? He only goes by recommendations from people like yourself. Sorry, Dick, consult the real experts before you jump in.