I'm the person who wrote the new Install/Config guide. Since it's been out for a couple of months and comments about it have generally been favorable, it's probably safe for me to become more public.

A bit of my background:
I was an engineering major in college. After graduation, I did assembly-language programming for about 10 years, then I wrote manuals for Digital Equipment Corp and other assorted companies for about 30 years. I've also had a home metalworking shop for about the same length of time. I have no CNC equipment, and due to space, time, and budget constraints probably won't, but I think I have the background to readily understand the concepts, to appreciate what matters, and the experience to describe it in an understandable way.
You, though, are the judges of that. If the documentation is unclear, incorrect, or incomplete, let us know. My experience working with Brian and Scott on the Install/Config guide was very positive. They are committed to having good documentation, which is a refreshing change from the attitude of far too many companies that view documentation as an afterthought or a necessary evil, to be done as quickly and as cheaply as possible. Brian and Scott want to do it right. It will take a while -- good documentation takes time -- but be assured we're working on it, even if it doesn't appear as quickly as you (and we) would like.
It's all Ron Ginger's fault.

He talked me into it. Ron is helping, too. Ron lives about an hour's drive from me, and I have a standing invitation to come use his CNC equipment when I want to see how something works or test a Mach3 feature.
Steve