Blacksheep,
Where did you get hold of the info with regards to the report on effects of shiftwork? Apart from terrifying the life out of me (what little I have left of it!!! .......having been doing this crapp for 20 years) I am pursuing a post grad course in aviation human factors and this looks like an important issue to get into to.
Regards.
Are you currently in Borneo? spent a number of years in KK and liked it.