What size grinder do you prefer? I've tried a lot of grinders, and I find I like em really big. Four inches across. I can grind enough for one day, all at once. I also like how it feels in my hands.
I just ordered a 55mm grinder. Haven't gone that small in over 10 years. I wanted to try something a bit different instead of the usual 64mm. I usually only grind up enough for one sesh at a time so it should suit my needs nicely.
I like Storz & Bickel’s Herb Mill. It’s a little tough to shake out the herbs post grinding, but they also have a great brush that solves that problem-or any kind of brush works. It’s extra sharp and big enough to easily grind enough for the day at once. (And I’m the sort of guy who starts in the morning and keeps it up til bedtime, lol). https://www.storz-bickel.com/en-us/herb-mill
everyone is different. Like me, I prefer smaller grinders for long trips. Especially when crossing from rec to illegal states. Easier to hide when the blue lights come on. Now being from a state where they just don't care bout weed anymore, bigger the better.
If I had it to do over I'd go for a 4" minimum, but that's me, my grinder stays home. I never carry more than a few J's when leaving home.