All this stuff is much to technical for me. I just try to burn more calories than I take in and wala, I loose weight. Since I took us biking about 60 lbs worth. Conversely. When I take in more than i burn, guess what?
I really don't give a hoot about body fat %. I know if I am working out and loosing fat, I must be going in the right direction. I could be over simplifying here, but I like to keep things simple.