you pretty much just add acid to freebase goo until it has all dissolved, it wont take much. granted it might not react instantly, and the goo will contain sap, oils and fats that wont react at all. unlike extracting the dmt out of organic matter, the mini AB doesnt require a hundredfold excess. it works close to stoichiometrically, depending on how much insoluble goo you have. so for grams of spice you are looking at an order of grams of acid and base too.