Betaflight feedforward tuning: sharper stick response without bounce
Feedforward makes a tune feel direct without overdriving P. It acts only during stick movement and lets the quad follow fast inputs before error builds up.
What feedforward does
Feedforward computes control output from how fast your stick moves, not from error. That makes the quad respond instantly to fast inputs, reducing the lag and overshoot that P alone would cause.
Starting values per axis
Pitch and roll need more FF than yaw: pitch typically 90–140, roll 85–130, yaw 80–110. The transition parameter (default 0.5) fades FF out as the stick decelerates toward center — higher = smoother stop, but can feel disconnected.
The snap test
To check: hover at eye level, snap the roll stick fully to one side and back to center immediately. Undershoot means raise FF; overshoot/bounce means lower FF; a clean stop means FF is right.
In the log, not the feel
The snap test by feel is rough; the step response in the log shows undershoot, overshoot and bounce exactly. PIDoctor scores tracking during stick transitions per axis and derives concrete FF adjustments from it.