My opinion ---- >

Copper isnt a good idea . The easyest way is to mix it with ash and use that like hash .

Hot knives isnt usualy a good idea . Its a way to smoke crap and still get a hit off it . The temperature is WAY to high and what comes over is HOT and full of things that distill at a higher temperature ...... or at least the temperature is hard to control = One smothers ones lungs with HOT tar and ? and that has an effect . Doing it with good qualitys kills the high .