Comparison of scroll wheel
G Pro X is my oldest mouse that has a noticeable higher pitch scroll knocking sound
Black G Pro superlight is the second oldest I got when the Superlights first got released has an even higher pitch sound
White G Pro Superlight with the tape is only about 3 months old and started to developed surface finish flaking so I got it replaced but the scroll wheel sounds about stock from when I first got it
White G pro Superlight is lubed with Krytox 205g0 and it cleans up the pitched click you hear when you scroll fast.

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