I am blowing up this thread! After I got done with work today, I did some more research on the information I was looking for. While I've answered some questions, it's raised another.

Anyone who reads this and notices I am wrong, please reply asap so I don't accidentally misinform others Please answer any of the remaining questions if you can! If I can get all of these answered, I will be subbing my girlfriend's urine for my own and will post the resolution so others can have more references to use.

1) Gender of urine is irrelevant
There are many people online that claim differently than this. Most "Answers" websites fall in this category. On the majority of forums I've found, typically one to two people claim that it can be detected, but board experts denounce these allegations and display proof as to why. On cannabis.com, BurntToast posted back in August 2103 that gender is still a non-factor, and I think we all respect his (her?) opinion.

2) Storage
Appears to be 8 hours for room temperature (per N2 per Urine Suppliers), up to a week refriegerated (Random McDuder Online), up to one year frozen (per N2). Recommended to not use a microwave to heat up or thaw organic sample. Instead, recommendation is warm water and then hand held warmers to get to full temp (microwave may be outdated now. Per N2 on a thread from 2003 that appears to be the same as their substitution thread here.

3) Secondhand Smoke
It takes a lot. The analogy I saw from another site was that if a non-smoker was in a car getting hot-boxed for hours AND they took the test the next day they MAY fail. For my referenced situation, the amount imbibed would be far too little to cause a fail (even at 15 threshold? -unknown).

4) Cleaning containers
Be diligent? From what I've read and what I'm forecasting, it should be fairly simple to clean with something to kill all the residue, then wash thoroughly to remove whatever the cleaner was. Seems to be Easy Peasy Lemon Squeasy.

Remaining Question (and requests for 2 confirmations):
Confirmations: Am I correct in the storage time frame and the second hand smoke at the lower cutoffs? If not, please educate

Question(s):
1) Can too much creatnine (or however you spell it when it's metabolized) cause up red flags? I may try to procur my roommates urine (non-smoker for 90 days, VERY athletic and has approx 5% body fat- definitely clean!), but from researching the web, it looks like the creatine he takes for working out may cause an issue. For reference he hits the gym once per day, and takes one serving/scoop of the supplement that he uses per day.

2) Is there anything I need to worry about besides "is the sample clean" when subbing with an authentic sample? My girlfriend lives a fairly "average" lifestyle (work, hang out a bit, etc) but hasn't done a single drug since February (and even that was only like 5 puffs!) outside of my second hand smoke. She did have to take a prescription that *may* show on the test, but research on the internet (plus information from her mother, who works for a pharmaceutical company) says that it should be a non-fact after 2 days. Assuming that would no longer flag, is there anything else I need to watch for?

Would there be any benefit to using the roommates urine over hers? The information from the internet seems to be fairly split, but my understanding is that there is not a difference to using his over hers except his hyper-active lifestyle versus her more relaxed one (and I can't even figure out if that's a relevant difference in the end).

Sorry to ask so many questions, I've never subbed before and I'm lucky enough that have two choices: 1) take a crappier job with less advancement opportunity but no test or 2) better job, better ability to move vertically within a quarter, requires a 10 panel pass. I just want to make sure that I make the right choice.

Thanks!!!!