High five. I sorted out the debris like you too. How did you do it? I watched a video and copied the Chinese farmers. I used a wide hole siever – debris like stick, heavy seeds and others are heavier and will go through faster. It is not perfect in one shot, but after I went through 3 rounds or so. It cleaned up very nice.
I also tried to grind Szechuan peppercorns, and it didn’t seem to work very efficiently in my manual burr grinder. I think they weight a little too light. I remember having better experience with a small electric blade grinder. I usually use mortar and pestle, but that is simply because I don’t use a lot of a time, and I prefer to grind them before use to get the most flavor.