Military piss test

ok so im sure you have seen a thousand of these threads, sorry but i got some questions. ive already done alot of research looked at a ton of forums/threads among other sites. im feeling my test could go either way and would like some personal feedback.

im joining the military, and i go to MEPS and take my piss test tuesday.
ok so ive been a heavy smoker for the last year. up until a month ago it was everyday and then i started cutting back. 2 weeks ago i quit, went 6 days without and then smoked again for 2 days, just a couple bowls. i quit again for another 5-6 days, then smoked the equivalent of 2 bowls at most. this was ystdy. now, i take my piss test on tuesday. i have already postponed it once for other reasons, and id rather not have to postpone it again. i have been taking alot niacin and b12 for the last 3 days and have been drinking alot of water tea and juice. i have worked up a sweat a couple times workin out but not much. if i keep taking about 1500-2000mg's of niacin and continue to drink gallons a day, how good of a chance do i have to pass? any tips to help? should i definately postpone it? also i am 6'2" 180lbs with a pretty fast metabolism and not much fat, i just have a little gut, thats about it.

also this is for the Air Force, which are stricter than the rest of the branches.
i would appreciate any answers and tips, so thanks in advance.

please?? anyone...??

am i doing something wrong? 41 ppl have looked at this and not a single reply. please... need some help...

Niacin is a myth. It does nothing to help pass a U/A. Also, taking considerably more niacin than the recommended 15 mg/day can have some serious health consequences.
Morons Overdose on Niacin While Trying to Beat a Drug Test | Wired Science | Wired.com

Medical News: Overdoing Niacin Can't Thwart Drug Abuse Tests and Is Risky - in Emergency Medicine, Emergency Medicine from MedPage Today

Drinking fluids is only helpful on the day of the U/A. Drinking a bunch of fluids days or weeks before the U/A is of no help. It may cause frequent urination, but it has no effect on the filteration rate of THCA from the bloodstream by the kidneys.
For proper tips on waterloading, read this thread:
http://boards.cannabis.com/drug-test...uidelines.html

To bring color back to the urine, the proper vitamin to use is B2 (Riboflavin), not B12.

Sweating doesnt help much because very little THC is excreted thru sweat. The rest is being excreted via the urine and bowels.