the knife hit i know of ive never used with resin. but you take 2 butterknives, and get a blowtorch, and heat the tip of the knives up until they are red hot, and then hold whatever you are smoking in between the two red hot knives, and then some really thick ass smoke rises off it, and you get a straw or hollow pen, or something of that nature and suck in all that smoke, and you get really high that way.