"I've only tried changa once and was a bit confused as to how to dose it correctly." -Enoon

I use an A/B extraction from MHRB and then infused the DMT into Caapi leaves using a 1g Spice:1g leaf ratio with Everclear being the solvent for the crystals.  After the changa was dry I then was able to roll it as any homemade cigarette.  It took maybe a third of a cigarette for me to be travelling but I don't know if body weight, mood, etc. factored into the effectiveness of the changa.  I assume using a bong or pipe would work just as well; in fact, I think a bong might be better for volume of changa ingested, etc.  Just thinking...

Also to remind you, changa has a more gentle lift-off compared to DMT.  I like both but since I have children I prefer to have leaf around as opposed to crystals.  "...You've got to hide if from the kids coo-coo kah choo..."-Simon and Garfunkel

I think also one may be able to use a gvg with changa if so inclined.