That is what I am saying, what made my extracts differ was that my extractions led my to infer a few things that maybe responsible with my very very limited knowledge of biology... These acacia trees produce less DMT depending on their environment soil, temp, sunlight. My extraction methods are good, I understand everything that is going on and have been doing it for a long time. The only other things that may effect it was either 1) bark not being powdered but more like sand, grainy or fibrous (shouldn't mater that much). 2) room temperature being 10c higher in summer extractions vs winter but I do extra naphtha pulls so it shouldn't effect it that much.
Also, I remember from reading the acacia thread that the age of the plant effects DMT content mostly in bark. Young trees have very little DMT in their bark with high fat/oil content.