First of all....do you know if the environment you need to test in would allow an opportunity to sub?? Secondly....with your smoking history (an 1/8oz a day) it will PROBABLY take some time before you can get your levels low enough to dilute. EXERCISE (nice sweaty cardio), eating HIGH fiber/LOW fat foods, taking metamucil 3 times a day and staying hydrated (NOT water loading) every day will be your bestest friend to cleaning out sooner. The more fruits and veggies you eat, the less fat you are taking in. In fact...AVOID all fattening foods....read the labels on the food you buy. You can learn a lot about what you are taking into your body. In the mean time order drug test strips off ebay (approx. $1.30 each). Give yourself about 10 days clean before practicing the dilution method. As long as you are sweating hard the THC metabolites will continuely flow to your urine, so stop exercising for a couple of days prior to diluting. It REALLY does work...and cheaper then "magic drinks" that get rich off your money.