tldr: sandpaper is very complicated
https://www.youtube.com/watch?v=aVRm6YCG2Vk
YouTube
The Weird Physics of Sandpaper (Why You’re Working Too Hard)
Are you falling for the 3M Cubitron Trap? After a massive, multi-week sandpaper torture test, I break down exactly why your premium abrasives might be ruining your finishes and how to fix it using the 80/20 Workflow.
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