I'm sure most have seen these, but I'll shoehorn them in anyway. Good stuff.
'Three Beta-Carboline Containing Plants as Potentiators of Synthetic DMT and Other Indole Psychedelics', by Gracie and Zarkov - 1985.
erowid.org
'Peganum harmala: An Indo-European Plant Teacher', by Gracie and Zarkov - 1986.
erowid.org
These are some great articles, Gracie and Zarkov are pioneers and they give, as far as I am aware, the earliest accounts we have in the modern literature of smoking MAOI's to potentiate smoked DMT, although I have no doubts that these practices have been going on for centuries.
Just as I am quite sure that smoking Caapi leaf and extracted DMT is something that has gone on in the Amazon since prehistory (at least we have evidence for the snuffs with this combination), I am now of the opinion that smoking or vaporizing this Peganum Harmala resin combined with extracted DMT is a likewise ancient practice.
@TheAwakening based on the article cited and ongoing experimentation I am going to question what I said before, and say that indeed vaping the resin may be one of the ways to go.
Gracie and Zarkov make some observations that are directly relevant here from boiling and straining rue seeds to arrive at the resin:
"The plant material is smoked with a match, lighter, or torch in such a way to promote the boiling of the material, rather than burning it. This seems to yield the most effective high. The highly concentrated rue extract lends itself nicely to smoking in a “hash oil” pipe with the flame heating the bowl on the outside."
By 'hash oil' pipe, either a pipe or bong with a bowl that allows heating of the bowl itself to allow the resin to 'boil' or else something like a glass vapor genie, with the flame not directly needing to touch the resin. This is significant because it means that in resin form this form of changa can indeed be vaped rather than smoked.
It goes without saying also that for every current Changa blend out there, there is an alternative method to having to use DMT dissolved into alcohol to mix with Caapi leaf or any other leaf.
One can simply make a leaf blend by mixing whatever desired leaf combo you want with the reduced Rue liquid and some freebase DMT and letting it dry out to make a smoking leaf blend.