In reply to TomDisomma: dude I can't be arsed to read everything that has been posted above, but I'd imagine they'd say something like:
The OP was like saying, I've learned to drive from world class rally/F1 drivers, do I need to bother with lessons? How do I apply for a test.
It's all about learning how to 'teach' safely. Replace 'teach' in that last sentence with how to pass a test.
Seriously though, I wouldn't even go to an assessor without attending their training sessions. That's the best way to get the measure of what they are looking for, I've had training off one and been assessed by another and it's hard work.