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DPIonMouse.com
⚖️ Dual-Test Differential Analyzer

Test Comparison: Before vs. After

Verify whether toggling your mouse DPI switch or adjusting companion software actually produced the expected proportional movement change.

DIRECT SUMMARY

Why is comparative DPI testing useful?

Many mice advertise multiple DPI stages (e.g. 400 to 800 to 1600), but companion software bugs or firmware glitches can cause non-linear transitions. Running a before-and-after physical test confirms whether moving 20 cm at Stage B produces exactly double the displacement of Stage A.

Test A: Baseline SetupSetup A
Test B: After ModificationSetup B

Differential Ratio Analysis

Expected Ratio
2.00×
Observed Movement Ratio
2.00×
Scaling Accuracy
100%

✓ Perfect Proportional Scaling: Your mouse DPI modification functions with 1:1 integrity.

How to Execute a Controlled Test Comparison

  1. Perform Baseline Swipe: Use a desk ruler to swipe 20 cm at your initial DPI stage. Enter the observed counts in Setup A.
  2. Change DPI Hardware Stage: Press your mouse DPI button or change profile in software.
  3. Perform Comparison Swipe: Swipe the exact same 20 cm distance and enter counts in Setup B.
Summary & Verification Takeaways
  • Doubling DPI should yield exactly double the coordinate count over identical physical travel.
  • A ratio discrepancy greater than 10% indicates software pointer speed intervention or sensor acceleration.
  • Comparing tests eliminates absolute calibration variance and focuses on relative sensor scaling.