Source Engine Movement400ms Lurch Timer & Scroll Dyno
Apex Legends Tap Strafe & Scroll Wheel Cadence Dyno
Master sharp 90ยฐ and 180ยฐ airborne redirects. The Source engine grants a strict 400-millisecond lurch window upon leaving the ground. Test your mouse scroll wheel click frequency (Hz), forward input density, and directional steering.
Scroll Wheel Lurch Dyno
Scroll Wheel Rapidly Here
Simulate spamming your (+forward) scroll wheel bind within 400ms.
Engine Lurch Window:400 ms from jump
Minimum Forward Ticks:4 ticks for 90ยฐ, 8+ for 180ยฐ
Optimal Scroll Rate:25 - 45 Hz
Airborne Velocity Vector Redirection
0 Hz (Idle)Scroll Speed
0 Hz
Ticks per second
Lurch Count (400ms)
0 ticks
During jump window
Vector Redirection
0ยฐ
Turn completion
Retained Velocity
299 u/s
Full momentum
Tap-Strafe Execution QualityReady to Test
Scroll the wheel inside the box. A cadence of 8 to 14 discrete scroll notches within 400ms effortlessly executes a full 180ยฐ momentum flick without dumping your horizontal slide speed.