Not to argue the point too hard but a 50% chance of rating is extremely harsh. (I know you are commenting on stats but I am commenting on reality of the job) Having worked 'elsewhere' OZ ATC is far from difficult. The complexities come from knowing the rules inside and out and being able to recite them on command.
If I were advising a brand new OZ ATC I would have them committing to memory every part of MATS and every Local Instruction. Technicalities like fine speed control to close gaps, climb indicated air speed to create a vertical scenario, headings to avoid conflict areas caused by congestion, bashing in 20 in a row in 8nm trail, you know, Air Traffic Control, are all a waste of your effort.
Last edited by Plazbot; 19th Feb 2014 at 19:05.