Drug Test Strategy

So recently, my parents have been really uptight about the herb, and have started drug testing me again. I took a 6 week break, and just smoked again last weekend on friday and sunday ($1080 toro friday, $800 RooR sunday), which were the most intense smoking experiences of my life. But now i'm probablyyy going to get tested again (and fairly regularly), especially with monster massive and hard halloween coming up, and i'd really like to keep smoking, though only on weekends.

My strategy is to smoke friday/saturday, take niacin every day during the week and the days i smoke, and to continue working out/playing football (varsity) every day besides sunday. What are the odds of this allowing me to pass PIAC tests on a consistent basis?

Other info: taking a piss in the cup test, will be able to dilute my sample with warm water, have access to B12, 6' and 183 LBS, planning to smoke no more than an 1/8 a sesh, will not be taking niacin the day of the test, and i'll be drinking water constantly (taking creatine as a lifting supplement and I need to drink about a gallon a day to keep my kidneys from getting fucked). Does this sound plausible?

Any other suggestions would be appreciated. I know the city gets a LOT of posts about this bullshit, and I hope i provided enough information for an accurate response, and that there are TONS of BS variables affecting DTs, but please halp!

 

I know, though this is more specific