Pro tip: leveling my grinder burrs took 6 weeks because I kept skipping the marker test
I got a hand grinder in February and the pour was never even, so I spent almost two months chasing grind size, water temp, and beans before I finally checked the burr alignment. A guy at a shop in Boise told me to color the burr edge with a marker and spin it, and the wear pattern showed one side touching way more than the other. Took me 20 minutes to shim it once I knew what to look for, so why does nobody mention alignment before telling you to buy a new grinder?