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[Chloe Cooper]

The physics here comes down to separating two things people constantly conflate: absolute mass and moment of inertia. Yes, reducing total mass lowers the force you need to accelerate and decelerate the mouse (F=ma), which helps during those fast flicks, but the real game-changer for micro-corrections is where that mass sits. Moment of inertia depends on mass distribution relative to your rotation axis—so a mouse with weight concentrated near the grips and sensors is far easier to twist and stop mid-swift than one with mass pushed to the edges. If you’re doing a 3D-Printed or CNC mod, I’d prioritize hollowing out the shell and trimming the rear cap rather than drilling into the skates or mid-body, because removing peripheral mass drops your rotational inertia far more efficiently. That’s why players chasing pixel-level tracking often feel a “choppier,” more controllable response from a moderately weighted mouse with a low center of gravity than from one that’s just been gutted to featherweight.

On implementation, be careful not to overcorrect—the sweet spot for most FPS players sits between 55-70g depending on your pad friction and aim style. A mouse that’s too light

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