📖 The Complete Competitive FPS Aim Calibration & eDPI Guide
1. eDPI vs Universal cm/360 Physical Travel Distance
eDPI (Hardware DPI × Sensitivity) is game-specific due to differing engine yaw constants (e.g. Source/CS2 0.022 vs Valorant 0.07). cm/360 measures the exact physical distance in centimeters required for a full 360° turn, serving as the universal aim standard across all games.
2. Arm Aiming vs Wrist Aiming Sensitivity Categories
Low sensitivity (>45 cm/360) utilizes arm/shoulder movement for broad turns and wrist for micro-corrections (favored by CS2/Valorant pros). High sensitivity (<28 cm/360) utilizes wrist-only motion, favored in fast tracking titles like Apex Legends.
3. Higher DPI (1600 vs 400) for Lower Motion Latency
Using a higher hardware mouse DPI (1600 or 3200) with a proportionately lower in-game sensitivity reduces initial sensor movement latency by 2ms to 4ms because the optical sensor detects micro-displacements faster.