It's been rather boringly done (the presentation, not necessarily the story) although the weaving is interesting.
However I looked up warrant officer and it turns out that anyone promoted to warrant officer had to be be literate. This throws a whole new light on Matthew Gibb's supposed "drunkenness". The fact he became a warrant officer and then was demoted and then learnt to read and write was specifically mentioned so I can't imagine that the researchers don't know this - so why leave it out?
Hope it becomes a bit less lethargic!
