Hi All, I'm a former toker and I have been clean for 4.5 yrs (zero exceptions... totally clean). This may be a silly question but I haven't seen a clear answer already posted so here goes. My hair was short so they went for the armpit... No big deal right? From the FAQ - "Armpit hair grows at about .3mm per day." -trapt If that's true, wouldn't I eventually have to trim it? I never have... So, from a forensics standpoint will they see that historical use? Follow up question: I also have a background check and 4.5 years ago I failed a test (funny how that coordinates w/my change in lifestyle)... Will that show up? Thanks all! This is a great site.