What are the resistance levels of the total gym XL?

By downloading the Total Gym PowerGlide owners manual, which has a chart in it, and by using the numbers in the website http://www.statisticool.com/totalgymmath.htm, I extrapolated the numbers for the XL and XLS to be, 6.5, 10.2, 14.0, 19.2, 21.8 and 25.9 degrees. Using the chart in the manual you can determine the % times your weight or just use the chart. Then you can either divide by 1, 2, 3, or 4, depending on the configuration of your setup. I don't know why this is such a big secret to TotalGym. I would think they would want people to know what weight they are using.