Well endlessness, I am fairly sure I had n-oxide and this is why:
My yellow oily waste was the results of evaporating with heat and a fan - this produces lots of DMT N-oxide. My yellow remnants were soluble in water, as is DMT N-oxide. Right now it is worthy to note that a POLAR substance was initially pulled with a NON-POLAR substance, which indicates that some sort of reaction has occurred to make it go from non-polar to polar. I added some citric acid and zinc (galvanized nails) to the n-oxide and left it to sit for a while. I basified with sodium carbonate and my pulls so far are yielding yellowish crystals.
So yeah, mission success. I'm thinking it would be good to add a reducing agent in acidification of A/B extractions to yield more DMT.
... and no, I did not do a control. It was more of a salvage operation than an experiment. The extraction the oxide came from was more of an experiment where I was just trying to see if the tree I was using contained DMT and/or if I had a good method.