Thanks for the info, great find and great article.
I've never liked the whole BMI formula that is used now, and infact I've been told that being Black our bone structures are different, so the BMI standard is not a good source of body fat for us.
As for the methods described in the article, I have the main three, the calipers, (takes some getting used to and does require some skill), the scale which I still question how much of it is based on calculations, and the tape. The tape is easier to me and I use a different site, but it is still a Navy calculator.
All in all I agree with article, focus on body fat and not the weight.