

Trichocereus Pachnoi San Pedro dosage suggestion
i have this much of a cactus left. i ate the cutten piece and i didnt felt very much. i also only ate its chlorenchyma and not the white part too. i believe all of the cactus have mescaline in it except for the middle ring and the outer skin. would the one on the photo be too much for 2 people? or too little? also if its right on point, how am i gonna eat this much cactus?
and how many miligrams of mescaline would be in this piece?