Ash
Don't waste your money. if you've done Nathan's course, (& failed?) then go back and do it again, I think he sticks with you until you pass, no extra $.
If all you want is a different angle, again, don't waste your money. Just get the tick in the box and forget about it. That is unless you have landed a job flying a 727 in Australia which also includes manually planning all flights? Yeah right.