The scales can be a bit temperamental with light weights (eg.0.05g). I use it for measuring yeast and the scales will often ‘skip’ - I’ll add a few grains when it reads 0.04, and keep adding until it suddenly jumps to 0.06. I’ve found it helps to lift the tray from the scale and replace it to get an accurate reading (moving the tray can cause it to jump 0.02g). The small trays it comes with are good, and helpful. Now I’m used to the quirks, I’ve adjusted - but be prepared to double check weights until you’re used to it.