Gimbal Stabilization Techniques Mastery Hub: The Practice Te

In the context of advanced drone gimbal calibration, what is the primary implication of a significant drift in the yaw axis during an IMU self-test, beyond what's expected from normal environmental factors?

During the fine-tuning phase of a drone gimbal, what is the most critical parameter to adjust to mitigate "jello effect" or high-frequency vibrations that manifest as wavy lines in footage, assuming initial static balancing is optimal?

A drone gimbal, after a successful initial calibration, exhibits a persistent slight tilt in the horizon when the drone is stationary and perfectly level. This occurs consistently across all flight modes. What is the most likely underlying cause, and the specialist approach to rectify it?