So I've read a lot of different teks on the extractions. WTF. Sorry...ok where were we.
Simple a/b, seems simple. But what if we add some logic in the matter. Imagine if you used in the beginning basing a KOH base, already made before the project guys, acidified with sulfuric acid to 7 or 8 maybe 9 here..doesn't matter, re-based with a a softer base lets say ammonium hydroxide..yes it would be more volume of liquid but a finer softer basing..basing is harsh in any a/b...,,then titrate with tartaric acid to p.h. 7 respectively. Let precipitate andand here may be the genius you guys were looking for, after precipitation and dryness, hit with a decolorizing agent solution such as decolorizing carbon or charcoal, filter with vacuum for quickness or just filter..w/e.. and you would have practically pure dmt without any colored impurites. What do you guys think?

It seems very elaborate and uses some more "exotic" chemicals... Not for your average kitchen extractor I think...

Also, why overcomplicate things if some of the existing teks can deliver a very pute product, depending on the purity of your ingredients and the rime and effort you are willing to put in...

That being said, I am no chemist so maybe you should disregard my comments

Also, what by-products will be created by all these reagents? How will they affect the overall process and its final result? Will need plenty of purification?

So far for my 2 cents

As described, this approach makes no sense whatsoever, but that' what i understand:ypu base with koh, then bring the ph down with sulfuric acid just to base again with ammonia, then bring the ph to 7 with tartaric acid? Why? Maybe it would help if you outline your proposal a bit more clearly, also noting the rationale behind what you propose, right?

Ok some clarity, the reason for the double a/b extraction--. You precipitate, the precipitate has impurities, then base and reprecipitate, the freebase is more attracted the second time around to titration(precipitation) almost always, as the impurities after a second titration naturally attract opposites aways from the precipitation solution. You would of course during the second precipitation need 2 chemicals that do not mix well, aka ether/naptha and possibly water. The chemicals stated can be easily sourced for the same prices as vinegar and all the rest described in other teks. ALSO leaving less impurites, seeing as how you're using HPLC grade hopefully. Thus really pure product with no harmful impurites/colored impurities for a potent/ clean looking product.

If this still does not make sense to some, I will post a step by step tek as needed!

MODERATOR EDIT-OP SHOULD KNOW SUCH TALK IS NOT WANTED HERE.

I should also add, that this is theoretical and I'm sure "someone" will attempt it. This would not leave pure DMT in itself, but the other mind altering substances in it along. This will be the case with any simple a/b extraction. This is just a hypothesis of extracting DMT and its fellowship plant psychoactives in the purest and least harmful manner to the human body, along with what would be hypothesized as cleaner crystals..almost clear glass, and much smoother hits with a more pronounced product taste.