Excellent info. I'm sure there will be plenty thinking of doing the exams will be able to gleam some helpful stuff out of that detailed post.
a hundred years ago I did a full time course with Nathan, was tuff but Nathan got the whole class thru despite a broad age and experience level -
Good luck to all those that are on this difficult journey, something you will look back on some day sitting up there at 37000 ft and think I'm only using a small proportion of that knowledge-