I figured i would share my methods for anyone not sure on an upcoming test.
First off no need to be up all night studying, all you need is a couple hours before your test and like 20-30 bucks max for supplies.
The hardest part about substitution is getting clean pee!
Once that is done all you need is 1 condom, 1 bread tie, 1 package of handwarmers and 2 pairs of boxer briefs or tighty whities.
If you have to keep your sample over night make sure to refridgerate it or it will form bacteria.
A few hours before your test take your pee out of the fridge and let it sit under hot water for 10-15 minutes, While your doing this be cleaning out the condom(make sure that sht is ultra clean.)
Place the opening of the condom over the mouth of your bottle and be careful not to spill, shit is precious. Twist the end well, and secure it with your bread tie.You do not want to tie it, its harder to puncture a condom than one may think. Fold the ends of your breadtie as not to bust the condom once in place.
Double up on your underwear and place the condom kinda between your legs and ballsack/dick region(kinda off to the side if you know what im saying.)
You want the temp to maintain between 90f and 100f no more no less. So an extra pair of pants is also recomended.
Take your handwarmer and place it in the opening on the front of your top layer of underwear, i tape it to make sure it doesnt slip. You dont want it directly on the condom as that shit gets hotter than 100f. Once your in the bathroom its better if you actually have to pee, quickly unwrap the condom fill the cup, and than take a nice piss. As long as your temps are good, your golden.
There is always the chance they are going to watch however, thats why you want to dilute as a back up. It really is as easy as chugging about a gallon of water over the course of a couple hours(you can do this as your getting your Substitute ready.) However dilution can show on many tests, so the night before and upto you want to eat as much redmeat as possible for creatine. You can also get creatine supplements. Also B Vitamins are essential to maintain color in your pee, you dont want crystal clear. Take your B vitamins about half way through the course of your water binge(crush em up). Its good to pee 3-4 times through the course of drinking, and then drink 1-2 more glasses right before you leave to make sure your over flowing. At this point you want to try to hold off on peeing again until the test.(will probably be pretty tough.) Always make sure to fill the cup mid stream.
Follow these tips exactly and you will never fail another piss test.
Oh and i blaze right up to the test and the dilution still works.