another "hey am I gonna pass?" question

[shoebox]

I have a pre-employment test with Labcorp probably next week. I smoked on average, about once a day for the past few months. I stopped two weeks ago but smoked once last Thursday. The stuff we get is average, nothing super.
I am 6'6" tall and weigh 220lbs, with a 36" waist (and I am fairly fit and active) and I am over 40.
I bought two different tests, one was "At Home/At Home Drug Test Kit Marijuana" and the other is "First Check"
When I took the "At Home" brand, it said send to the lab for results. I haven't taken the "first check" test yet
I have trolled the boards and read about dillution and exercise and how none of the "cleaners" actually work.
Questions:
is there a brand that is best for at home testing?
do they really care about the color of your urine? (I ask this because all I drink is water and the occasional beer, I was pre-diabetic and overweight a year ago and have since lost over 80lbs and all my vitals are nearly perfect)
what are the odds of me passing the test next week?

Once I take the "First Check" test I will post my results.
any help/advice/calm my nerves, would be greatly appreciated

[shoebox]

took the "First Check" test, had a nearly invisible/faint/hopeful line there. Hoping its a very visible line by Thursday. Will follow the dilution guidelines and post my results.
Do the testing facilities tell you pass or fail on the spot?

[Burnt Toast]

took the "First Check" test, had a nearly invisible/faint/hopeful line there. Hoping its a very visible line by Thursday. Will follow the dilution guidelines and post my results.
Do the testing facilities tell you pass or fail on the spot?Depends on the facility and the type of test. Some facilities are certified to conduct on-the-spot instant testing, while others have to send the sample to another facility for any analysis.

[shoebox]

So 28 days later and I am still positive with the at home tests. Labcorp test is tomorrow. I am going to try dilution and hope that works.
Being positive after 28 days clean sucks.
Does Labcorp keep a running history of your tests? If I fail this one, will all prospective employers know? Will it affect my clearance at all? Any help?

[BigTacross]

So 28 days later and I am still positive with the at home tests. Labcorp test is tomorrow. I am going to try dilution and hope that works.
Being positive after 28 days clean sucks.
Does Labcorp keep a running history of your tests? If I fail this one, will all prospective employers know? Will it affect my clearance at all? Any help?

The way I understand it, they keep your information on file but are not allowed to release it to a future employer. If you get another job interview, you will be screened separately.