So I passed my test on the 35th day.
I pretty much tested my urine using meditests everyday during the period.
As I noted before I have used for years, usually about a 1/4 a week.
I started passing non-forced diluted specimens on the 16th day.
I failed morning piss (1st piss of the day) up until my test date on the 35th day.
During the last week, I would test diluted and non-diluted samples and would pretty much pass after drinking 2 quarts or so of water, but would fail some non-forced diluted samples.
I started taking 2500 mg. of Creatine a day for the 3 days up until the test and a B complex vitamin from Trader Joes.
The night before the test, I drank a bunch of water before going to bed, a quart of water when I woke up during the night to piss. Passed that morning test, actually. I still went ahead and made a batch of Detox Tea, which is tea bags and B vitamin capsules and creatine. I had already purchased it a few months ago, so I decided to use it, though I think in the end it was a waste of money. I made the tea with 1/2 gatorade and 1/2 water. From research on various sites, including this one, it seemed like the electrolytes in the gatorade would help with the specific gravity test, if run. I tested myself before I went to the doctors office and stopped my piss short to ensure what I was testing at home (which passed) was the same I gave at the doctors office.
Funny thing is my Dr. said their usual protocol was a blood test (employer didn't specify method). Though, I definitely would have passed a blood test (longest detection period is 2 weeks). I insisted on the urine as I didn't want all my hard work to go to waste...lol I knew if it failed that I could still get the blood test done anyway as I could direct the results to the employer as I wanted (kind of stupid on the employer's part).
So I passed and am waiting for my hook to come through with some chronic so I can partaaay.
Moral of my experience is you can't rely on the 21 day study posted on Erowid or thinking you are definitely clean at 30 days if you are older (I am 35) and have smoked for a number of years. Buy 20 or so home tests at like $2 a test and figure out what amount of dilution you need, get some b vitamins, creatine, and gatorade and you will be good to go.
Cheers.