i tested at 17% 6 weeks ago (about 5 weeks into test and primo), i'm 5'9" and was 209 at that time
it was with one of those handheld things
i looked at the trainer like she had 4 heads and told her flat out it was WRONG and suggested calipers and that she pinch every damn part of me
she was like, oh this machine is very accurate and similar to calipers
this was me that very same day (weird pose and i'm pushing my lats back - bear with me):