I have been doing this for quite a while now, and anything dosed in mcgs just scares the living shit out of me. I just don't trust the scales that they sale on the internet. Like Enigma said, you better have access to a real lab or invest some hefty money into a scale that TRULY measures in mcgs. To each his own, but I would definetly not be giving it to anyone else to try. Too many factors to go wrong in my opinion. Good luck.