This is the most satisfying part because the rough edges wear down quite quickly at the beginning. After one day, all the sharps are gone.

Yeah, I forgot to take a pic before I started. I’ll remember next time.

By the way, do any tumblers have tips for the polishing phase? I chose like size/hardness rocks, use the correct grit, and clean well between phases. I even tried the borax trick at the end, but still ended up with some dull rocks while others were quite smooth.