flubba I couldn't agree with you more on the JKI booklet
some info do seem very vague, but if you read the second page it says 'It's up to you to dig out more information not covered in this book'.
IMO they may have done this on purpos to filter out those who have real passion for aviation~
anyhow that point has already been covered, exscuse my doubling.
good luck to those who will have their interview soon