this post was submitted on 10 Jun 2023
        
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      Trackballs
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I replaced mine with "sourcing map 2.5mm Ceramic Bearing Balls, ZrO2 Zirconium Oxide Ball G5 Precision". The difference is night and day.
I don't have much experience with other trackballs. I had a thumb control one from Logitech, which needed cleaning about as often. A small price to pay for pointing perfection, though.