If I were you I would take the road that sucks and stop for a while. I just went through a scenario where I knew for a month and a half that I would be moving to a new job and didn't stop until I the company I was interviewing with told me I had to take a test. It was incredibly stressful as I only had 10 days till my test. I have passed a UA with Qcarbo32 in the past, but I had quit for 22 days before. I couldn't afford to not get this job so I went with a clean friends donation and subbed. I had already bought 2 bottles of qcarbo about 3 weeks ago in anticipation of a test so I tried an at home test three days after quitting smoking but still only barely, with a very faint line, came up negative. I am 5'8", 205lbs, average metabolism, fairly athletic with a little beer belley and had smoked at least a couple one hitters a day for the past year.

After a lot of research and the test run it was clear I could have gotten the same results following the dilution sticky on here without dropping 100 bucks. I would recommend getting a couple home tests, and if possible, some adulteration strips (some tests come with them or you can buy them online) to test your creatine and specific gravity levels after diluting and test yourself at home. Like marleygirl said, everyone is different and your weight, body fat, metabolism..etc.. will effect your results. Regardless, if you go with dilution you should quit for at least a couple days, and being a heavy smoker I wouldn't risk it if you really need the job.

A lot of people on here have recently passed with quick fix so I would look for that if you don't have a clean friend. With the QF though it can be reheated and has a shelf life unlike someone elses sample that will start to go bad after 8 hours unless it is frozen. If you decide to sub then make sure you practice your strategy because the key is the temperature. You know its clean, but if the temp isn't withing a couple degrees of 98 it will raise red flags. Check out the sticky on the subbing method and other QF stories on here.

Hope this helps! Good luck and keep us posted!