this is such a great forum, i thought i would ask another question. i will be totally clean for 51 days the time of my urinalysis. i thought about doing the delution technique. however, i've read that it will be retured for a false negative. i really don't understand that wording (false-negative). does that mean i'll be re-tested? i'm on probation and this is very serious to me. i only need to pass this one random test during my probation. i really want to go back to smoking. please help. thanks.