Thanks guys for the info. Keep it coming, I'm learning what is required with every new post. This is exactly the kind of education I was hoping for. JP mentioned using a marquis reagents test kit. A few questions for anybody who knows: * Looking at the wikipedia page it appears one kit is used for a ton of alkaloids, the resulting color tells you what you have. Is there any issue with cofusion about which color for example Meth being cut with something else that triggers the test to turn another color? * If there is no concern, if I were to put in calibrated amount of product to the test would I be able to get an indication of methamphetamine percentage by the intensity of the color change? * Can marquis reagent tests be reused? * Does an solution available to consumers with more easily quantified results exist? (IE: stick 5mg in and it says "60-65%") Has anybody here performed quantified measurements against street meth or existing SR meth? In general, how good or bad is the state of affairs here? Do we have some wicked good shit already or are we dealing with product that needs improvement? (no insult intended to anybody, I ask the question innocently). If we have wicked good shit then maybe I'm worried too much about this. On the other hand if people are dissatisfied with the available options I could have this tested in a gc (there's a guy on the coke forums bringing samples to the dutch public lab). This would answer beyond any doubt the purity and cut of all the products available. I am enjoying this. Tomorrow I'm going to try some basic recrystalization techniques to see how much weight is lost as a baseline and how much with various cleaning techniques. If I don't report back it's because I fouled something up and am too embarassed to admit it Nod