I dont mean to keep insisting but.. did anybody ever do a side-by-side extraction to see if indeed not having pH below 4 will really be a problem? back when he was still using naphtha, SWIM has done A/Bs and definitely using less than 1/4 vinegar and he had yields of 1%. In a side-by-side extraction with an STB and an A/B both yielded the same, around 1%, and when doing an A/B also using very little vinegar he got around 1,5% using limonene. So at least in SWIM's experience doesnt seem like his yield was being negatively affected. As I said, dmt in mimosa is naturally in a water soluble form (dmt tannate possibly).. The acid in SWIM's opinion is important if you are using some slightly basic tap water or something, but even in this case a splash or two of vinegar or a bit of whatever acid should be enough.
Im not saying you shouldnt acidify, it definitely wont hurt if you do, but all im saying is that you definitely dont have to worry too much about it, you can start your process without a pH meter.. Also unless people here have really done side-by-side extractions showing that less acid definitely makes smaller yield, then I will keep thinking that claims of smaller yields from less acidic water is just an intuitive opinion but not really true.
