Good job there Dan, New users, and even some seasoned veterans should appreciate the availability of this!
I can't read the whole thing at the moment, but i'll add more posts as I do...
For now, here's my suggestions...
page 13 - 15, even though some of the tabs are very short in description, I think there should be a screenshot for all the preferences tabs.
Even though I know them when I see them, I got lost reading because I couldnt remember what those screens looked like. I would just say that the more pretty pictures, the better, and that will likely be my thoughts throughout the manual since everyone loves pictures, and different levels of understanding/learning may benefit.
Continuity would be preserved as well
Jason