Triskeliongirl...not attempting to be contentious...I tend to agree with most of what you wrote.
But, I know that I am nowhere near fairly lean. Although it has been awhile since I've had my body fat tested, I know from those experiences, and what I can readily pinch all over my body now, and how my clothes fit, that my body fat is a good 10 points higher than what I would like it to be. And, I am shooting for a very healthy, normal number, nothing low.
For that reason, it is a lot easier to track pounds for now. In about 20 pounds, it will be time to have body fat tested again to see where I'm at...
"The best rides are the ones where you bite off much more than you can chew, and live through it." ~ Doug Bradbury