Mainer,
Thought you would have recieved more replies than you have so far. In that thought, and thinking about your
task, here is an idea. Why not have the members do a review of the manual ? Seperate pull down by page pull down manual review. Post a shot of a pull down or section of it and simply ask......what is not clear in the manual relative to this page or part of the page. This way you would get a full review by the users and know any problem area.
Yes, it would take time, maybe a few months, but then, it certainly would be complete.
Just a thought,
RICH