desperate times call for desperate measures, so if you really want to get all your resin out, boil your pipe. start out with the pipe in regular temp water and then let the pipe heat up with the water rather than putting it in already boiling water. then once it gets to a boil turn the heat down. make sure there is a hole pointed up, either the bowl, the mouthpiece or the carb and the resin will start to just run out. then you can skim it off the top of the water with a spoon. put it on a plate or something and let it dry. you can try blotting it with a paper towl, that usually works. then after its dry roll it out into a line, like making a snake with play doh and put it around the top of your pipe so when you light it it runs down.

i don't smoke resin anymore but back when i did that method never did me wrong. plus it cleans out your pipe. BUT it will make your house smell like resin for a few hours, but just open a few windows and its not too bad.