(link to copyrighted material removed by nasty mean old mod)
If this is old news forgive me, I missed it. Well written though, answered a few
lingering questions.
Unfortunately that book is still available from Bosch (in a revised edition) and we're attempting to be squeaky clean on copyright around here.. so I've gotta delete this link.

The latest edition is a great read btw... and I think it was something like 20 bucks or so... well worth considering.