The thing to remember about detection of THC.....longer periods of time smoking means more built up of the metabolites. In other words, the longer you smoke, the longer it takes to clear up. You don't have a history of doing enough for a strong built up. "Most"...I say most cuz lifetime smokers are different.....people's systems are cleared in about 30 days. These people are regular smokers who have a built up of thc, like a cigarette smoker with cancer of the lungs. You don't built up cancer with a few cigarettes. It takes many cigs.