What is useful spinning information?

When you read spinning projects in Spin-Off, which do you find more useful? The paragraph describing the how the yarn was spun or the project notes box with the specs? I've included examples of each below (from an upcoming project in the Spring 2009 issue--sneak peek!). For purely theoretical reasons (I'm not saying I'm going to do this...), if you had to eliminate one, which would it be? And why?