The intention of this revision is to clarify and refine that text, rather than to change the overall recommendation. I just looked at a diff of the changes, and there are enough individual changes that is hard to summarize them. The one that I think is worth pointing out is that the text surrounding the explanation of the H Ratio has been redone. The H ratio varies between 0 and 0.3, with larger values denoting denser, more efficient assignment. Experience shows that problems start to occur when the H ratio becomes greater than 0.25.
Comments are welcome of course.
Also, Scott Marcus' suggested changes didn't make it into the current version, but will be included in the next version.