I'll take a stab based on my own experience and say the training would be done in house, which in this case I assume by both Patrick and possibly Tom down in Melbourne. Rob correct me if I'm wrong.
Same as when I trained at FJ's, you get taught by someone who has done it before and done it well, in my case the fitter that taught me and my mentor had been doing it for over 20 years. There is no course or apprenticeship etc it's just learning, listening & watching and eventually doing.
Why didn't he just say this, and why did all the well-known trolls jump in on the action?