If you want the most kief you want a regular grinder. And a Kief box. You get loads if you grind it and then shake it in the box.
I’ve tried the shedding (resin) grinders, the fine tooth dust maker that came with my volcano and about 10 others. My old grinder actually fused shut so i got this one Amazon. It’s by far my favorite. https://amzn.to/3whUlvt The Keif catcher is fantastic. Solid build and turns smooth. A tip for any grinder. Dap a bit of olive oil on a a tip and run it on the outside and inside of the grinder perimeters. Spins great for a couple weeks.
