Hey Padi,
To set the record straight. No one ever fails an IKO Instructor Training COurse, they are just deemed "Not Yet Competent" and need to improve in their area of lacking. A Competent instructor passes the course in many areas to be given the go ahead. I think there have only been about 4 people in four years who never went on to complete their training and become certified (at least thru me).
The lack of instructors in Oz is not a function of not enough people passing, more that many did teach for a while and found it wasn't what they thought it would be or they used it to travel and have since returned to a "real" job.
I have certified somewhere in the vicinity of 250 instructors over the years in and around Australia with more than half that number being from Australia. On average these days I only teach around 40 instructors per year in Australia, that should be enough to fill the schools demand.
Anyways, just thought I would clear that up.
Here comes the sea breeze, Good winds,