About the additive, (Urine Luck Urine Additive), it says it should only be used on GC/MS tests, and not for screening. When I take my test the guy always sticks some paper thing in it, before putting it into separate vials and into a bag to be shipped out. I always assumed that is part of an initial screening process, or was he just checking the PH? I never really paid too close attention, like I said I've been clean for 3+ years so I never even had reason to be nervious about passing a piss test.

You also mentioned it only works for heavy users, just curious, but could you explain why? I read the description on that website of how it works, but it didn't really say it shouldn't be used for light users or heavy users, it only says it is designed for the daily user. Once I start up I'll most likely be smoking, or eating weed multiple times a day, at lease twice, but of course not while working.

I might get the additive as a backup in case I don't have time for the Quick Fix, but to be honest I'd be nervous about adding stuff to my piss. Couldn't adding additional fluid drop the temperature? Also, when it is sent off isn't it possible that eventually the labs could wise up and figure out a method to detect any additives? It might work for now, but I'd assume eventually they could figure it out.