What's goin on swybs? Okay, I've bought two of the test kits thus far. I think it was around $35 U.S. There are 6 test packets per box. You cannot re-use them. The color indicates the percentage of "actual" cocaine in your sample. The darker brown the color, the more cocaine there is in your sample. The test only provides the percentage of cocaine in your sample, nothing more. It will not provide you with what else might be in your sample (cuts, etc.). It takes about a week to arrive. I've noticed that it's pretty much all the same regardless of purity due to the overpowering nature of the speed in it. I didn't quite understand your "theoretical" question though, bro.
swybs, I'm doing "old school" coke anytime and everytime I get it now, regardless of how shitty it is to start with. A literal genious stepped up and finally showed me the light. It shattered everything I thought and have learned thus far about cocaine purification. And the best part is that it's soooo easy to perform. The easiest of all in fact.
I already knew the results after I cleaned up some coke last week, but I ran the EZ White test kit on it anyway. Beforehand, it tested a medium to dark brownish color. Once I took the 20 minutes to clean it up (the correct way), it tested so freakin' dark brown, that it was nearly black! It's fool proof. And the best part is, that I no longer have to go to Costa Rica to do great blow. Hell, it's right here anytime and everytime I want it!
I'll be making a post on the "how to's" in the next week. I'm just waiting on feedback from someone else I gave the recipe to for verification purposes. Just for research purposes, of course, before I actually publish the report. There will be a book to follow. LOL