My old Ohaus beam scales (which I still have despite the electronic ones) are about 45 years old. They were second hand when I got them. They do exactly as you descibe. If I trickled until the pointer hit zero and then gave the pan a wee nudge they settled 1/10 over. So, I just trickled to 1/10 under, nudged, and checked they ultimately settled at zero, or made any minor adjustment required and all good. Like you say, consistancy is the name of the game. I tried cleaning the pivot points etc but they still did their 1/10 thing.
BTW, I would never part with my old Ohaus scales.
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