thanks for the reply. i recieved my results back yesterday from my po. failed!! lmao, not for the pot though. i take kolonipin for those that take or know about meds its a benzodiazepine. same as xanax and valium. of course now they would give me hell about it 2 months before getting off probation. i had to go show her my script. well yes ive been playing with xanies and valiums backing myself up using this script. seems my other po i had was just looking at the bottle and not documenting the pills and over looking the results of the gas testing for drugs. my new po says benzodiazepines have been showing up for some time. im backing up this post with some help now that i have inside info of the gas test. dpoison is right on the mark with the cost. its an expensive toy. and my state cut a deal with the owner of one to do ua's at our expense and a monthly fee. our fee for monthly reports were 40 bucks and 4.95 a ua. right when we got the lab in our po offices it poped to 50 bucks a month and 10 bucks a ua. which is shipped (fed ex) to the lad where the gas testing is done. dpoison is also correct that this test is no joke. i am 180 lbs and 5'10" . i smoked 3 j's the first week of feb. and tested clean the 2nd of march for thc. no extra water nor maskes. im not encouraging anyone to take the chance i have. but wanted to post some info. so close to getting off im ready to get back in the saddle.