some uppity little grasshoppers out there.. ! I mean to shake the bush you live in, asking you 'is there more' to your understanding, here .. and there >!? and so with your attitudes, don't jump so far from the point of why we are here... .. so to say 'stfu' in a public forum is rather impish ... we're to ask and tell things, quite the opposite. I do speak from some experience, but I want to hear more of all of ours And Noman, you and your experience, citing your numbers are much appreciated. I had not heard any yeild 'numbers' cited before - nobody really has 'accurate' numbers ... so you are just one statistical point to answer that question. If it's just a 10% difference in yeild between STB and A-B, it seems trivial to worry about losing 10% ofone's spice. But I doubt this is true, i.e. not statistically accurate, yet. I'm, not going to go on about this just to quibble, I want to know more of our communal experience - let's hear more 'numbers' ... empirical data, or just anectdotal recovery stories about that time my STB-tek gave me twice (or half) the expected yeild. This could be another 'poll' thread I guess... To answer the question of which tek gives the highest yeild of pure dmt, we'd need to ge an average mean yeild from more than 12 replicate extratctions done STB and 12 done via A-B. This would be done from the SAME huge batch of homogeneously powdered MHRB. You make a null hypothesis that (yeild of dmt freebase via STB) = (yeild dmt freebase via A-B), and then disprove this with a statistical comparison of mean yeild and variance. In such an experiment it is a "mg-sized" yeild to measure, and if there is only a slight % difference between stb and A-B, we will need good scales and practice to keep times, temps and techniques constant. This would be a long project, or you'd have a lab equipped to do it. Noman, your experience shows that it taks 2 - 5 days for an stb to work, but the longer the lye-soak, the less yeild - correct..? Maybe it's just in my opinion, but 'convenience' and 'superiority' of the tek also relate to the time it takes to complete, and that the 'extraction' doesn't destroy th product. A-B can be done in 8 hours, or any overnight soaks at pH 2-4 will not degrade the dmt as an stb will. Isn't this correct..? Ness - please can you explain what is a "lye-booster" for..? Why are we adding lye.? Describe what NaOH does to MHRB ... or is it just me that wonders this..? Can you imagine what the OH- at pH 13.5 is doing, at the level of the dmt molecule...? Is the excessively high pH causing the insoluble dmt to 'clump' together, .. or agglutinate into molecular clusters..? Maybe this is a way of making like-molecules clump with like... a way of chemically 'pushing' the (insoluble) dmt into little gobs..? Maybe this is a 'separation' technique, but what is the resulting yeild... ? I thought the OH was a way to digest into th cellwalls and cellulose of the MHRB. But a pH of 2- 4 will 'digest' the cellulose of the ground MHRB as good as any lye-stew will... So I still get hung up on this analogy- imagine this - God gives you the keys for the Ferrari to Heaven, and to get there 'fast', you can choose to grind through the 8 gears without using the clutch, skipping through gears 2, 4 and 7 - or you could learn how to drive a 'standard' procedure ... Although, at 2-5 days of stewing, it dosn't seem faster to 'drive' alla STB... But don't worry .. There are an infinite amount of Ferarris for us to have - it's true that if you crash in one, just go get another ! Pop through all 8 gears smothly, (in just 8 hours, say) .. and be left with the biggest pile of extractible spice you can obtain. Then get ready to rides God's Rocket ship! And there's the experience of crashing the 'Rocket ship' from having lye-contaminated spice in the bowl ..> ! Anyone know that newbie mistake..?!