With my pieces, I would always scrape them first and make a little ball, then boil them and take that resin, dry it, then combine it with the scraped resin. If you want to keep the resin so you can smoke it I wouldn't suggest the alcohol and salt technique, I would just boil it then dry the resin. Now that I think of it, I have a fat ball of resin somewhere. I have no clue where I hid it, so I'm assuming I did it when I was stoned because I can't even remember hiding it haha.