I've been having some issues using a 5d MK3 with 16-35mm lens on my M15. There is a very slight oscillation on the tilt axis during operation. This is not vibration. It appears to me like the motors are "working" too much. Is it possible the MK3 is too light for the M15? I checked the motors on the control app and all were between 0-3%. Pan Stiffness: 100 Roll Stiffness: 45 Tilt Stiffness: 20 Auto Tune: 60 Tilt Smooth: 45 Window: 3 Expert settings: Tilt Hold: 8 Roll Hold: 8 Pan Hold: 8 Gyro Filter: 5 Output Filter: 5 It's not footseps - the movement does not correspond. Any feedback/help appreciated.