we have sold few g's and waiting for more feedback , and on the pipe i came across a different method but works fine, same as the "dmt machine" find boiling tube, rubber cap which fits and two metal straws and some steel wool, place the steel wool in the bottom of the boiling tube and make two holes on the rubber cap and plant the two straws one to pull the air in and other to smoke the vapour, place a small piece of o in the bottom of the tube and top of the steel wool and heat the tube from out, when steel wool gets heated the o slowly evap, when the tube is full of smoke drag it will try to attach a pic of the one i built laterz