Valid question. BF is measured using a 3-point skinfold method with callipers. Each skinfold is measured three times to obtain consistency over all measurements. I know skinfold callipers can be off and a DEXA-scan could indicate that I am unknowingly already between 15 and 20% BF, which is then an extra argument not to let BF go over 15% according to my own measurements. How about my weight gain approach above? Experiences, thoughts, comments? Your own plans?