The Scientific Way to Pick a Mouse

The Scientific Way to Pick a Mouse

The video presents a data-based method for choosing a gaming mouse based on hand size, grip, shape, and weight—not simply copying a professional player’s setup. The creator says the project took nearly five months and drew on more than 150 submitted grip photos, anatomy research, and data from over 40 participants across three grip types.

Mouse Sizing and the Mouse Finder Tool

The creator argues that many players choose mice without considering how their dimensions fit their hands. The video offers these guidelines:

• Length and finger position: The index fingers should sit around the middle of the buttons, above the switches, where clicking is easiest. A mouse that is too short may force excessive finger bending or shift the thumb from its preferred position.
• Width and palm posture: The palm should retain a natural curve so the thenar muscles can contribute to a stable grip. A mouse that is too wide may flatten the palm and require a harder squeeze; one that is too narrow can over-bend the ring and little fingers.
• Fit depends on grip: The creator assesses submitted photos and adjusts the estimated ideal length and width for each participant. This data informs a Discord-based tool that recommends a size range based on hand size and grip.

The tool asks for hand measurements and grip type, and includes a visual guide for estimating thenar-muscle size. To check a mouse’s width, the creator recommends measuring at the sensor level, where the thumb and pinky contact the sides. This may differ from measurements on manufacturer websites or comparison sites, which may use the mouse’s widest point.

Shape Guidance

The tool also provides shape recommendations based on three features:

• Rear design: A wider or more extended rear covers more of the thenar area and can limit palm flexion. The video describes pill-like shapes, such as the Logitech G Pro Superlight and Razer Viper V3, as relatively safe options.
• Hump placement: The hump supports the hand’s natural transverse arch. A more pronounced hump toward the middle or rear is presented as suitable for claw-grip variations, while a hump farther forward may better suit palm grip.
• Button height: Lower buttons are suggested for claw grip to reduce sustained tension in the extensor tendons. Higher buttons may suit palm grip, where the fingers rest flatter.

The creator says around 60% of the professional CS and Valorant players he reviewed used either the G Pro Superlight or Viper V3, while cautioning that a professional’s mouse may be tailored to their own technique.

Mouse Weight: Research and Personal Testing

The video reviews two studies with differing levels of rigor:

• One study found no statistically significant difference between 80 g and 87 g mice. The creator criticizes its small sample of 16 participants and short gameplay testing.
• Another study, with 70 participants using mice weighing 50, 60, 90, and 100 g, reportedly found that participants were about 4% faster and 9% more accurate with lighter mice.

To supplement the research, the creator conducted personal tests across five scenarios, alternating mice and recording results. Across 980 runs, a 42 g Pwnage Ultra Custom Symm 2 (referred to as the Trinity) performed 3.6% better overall than a 77 g Razer Cobra. In a follow-up test, a 21 g Zeromouse Blade outperformed both: by 5.2% versus the Cobra and 1.62% versus the Trinity.

These are the creator’s subjective results, and he notes that the Blade’s different shape is a confounding factor. He concludes that lighter mice can offer performance benefits, while acknowledging that some players prefer the feel of a heavier mouse. The video does not establish a universal ideal weight.

Guides and Demonstrations

• Mouse Finder walkthrough: Measure the hand, select a grip type, enter the measurements in the Discord tool, and review the recommended size range and shape guidance.
• Mouse-dimension check: Use a mouse-dimension image and an image-measuring website to estimate width at the sensor level.
• Fit analysis: Compare finger placement, thumb position, palm curve, and finger bending to identify whether a mouse may be too short, wide, or narrow.
• Weight testing: The creator demonstrates a controlled personal comparison across multiple aiming scenarios, while emphasizing that it is not a substitute for broader research.

The video also briefly promotes Oblivity, a performance-training tool featuring sensitivity tracking, wrist and eye exercises, and training scenarios.

Main Speakers and Sources

• Main source: The Oblivity video’s narrator and creator, who presents the research, mouse-fit framework, tool, and personal testing.
• Demonstration participant: Chris, nicknamed “Hollywood,” who tests the Mouse Finder Tool.
• Additional source: Optimum, a mouse maker interviewed about the design priorities of its 21 g mouse.
• Research sources: Two studies discussed in the video—one comparing 80 g and 87 g mice, and another testing 50 g, 60 g, 90 g, and 100 g mice.
• Community source: More than 40 participants who submitted hand measurements and grip photos.