Said and done, thanks Benzyme. I know this may make some people upset, and it is certaintly not my intention, so please take this with a grain of salt, but I refuse to take a harmine + dmt only journey or a rue + dmt only, once I discovered how huge a difference the THH makes in the brew, I will never go back, the feel and vision quality difference is like night and day, not to mention it is way more euphoric, stimulating, and you have a feeling "like nothing can hurt you" whereas with harmine + dmt only journey I am scared much of the time, and the visuals are mostly (to just me) somewhat artificial and constructed looking, with geometrics describing the inner workings or programming, with the THH, the whole journey takes it to another level entirely (2 hours of Real Ayahuasca visions, like those painted by Pablo Amaringo), I get none of this unless adding the THH, I think THH may target the 5-ht1a receptors in the brain, which make up over 80% of the brain's 5-ht receptors according to Dr. Nichols, after all LSD and mescaline and mushrooms have all been shown to shut down serotonin signalling up to 85% by targeting the 5-ht1a subgroup heavily, dmt "on it's own" has been shown to not target the 5-ht1a receptors at all, but when combined with THH, this all changes. plus the frequency buzz felt thru the body is significantly higher when THH is added, much higer frequency. Not to get all serious and such, just stating my opinion. Good Luck and Have fun making your own THH. In two weeks I will use ammonium chloride and 10% janitorial strength ammonia to get a yield hopefully closer to 80-90% by preventing the precipitation of zinc hydroxide, just like the paper. I'm just gonna laugh and have fun the next two weeks, this past 3 weeks has been alot of research and work to get to my own THH, now will relax a bit. THH is a mild ssri, and according to wikipedia, all ssri's target the 5-ht1a class of receptors heavily. Just like Dr. Shulgin states, we need way more studies on this compound, I belive it is doing much more than ssri activity. It has been postulated to double the half-life of dmt in the brain before it gets "zapped".