Alright mate i know for a fact that theyll test you about 3 days after your in your basic training base. Well 3-5 days. I used this stuff a pill really and some water the day before meps, smoked hella days weeks and years before the test. Took the piss test and passed went through BT and made it to tech school was doing some field training and fucked up my legs so i got med disharge. And sick ass pay.