After changing my lens from FE 24-70 to the FE 16-35mm, I had a lot of troubling balancing my Came 7800. Eventually I balanced it quite nicely. It doesn't tilt or move when I put it in any angle, even when I lift the yaw forward/backwards and left/right.
I got it to work fairly well in normal situations, and I did calibrate it as leveled as possible. But when I turn the gimbal on follow mode, and I tilt the yaw sideways in quite extreme angles, it loses its stability and starts rotating (shown in video below )
I had this problem before on my previous lens, and increasing the power seemed to fix it. But in this case, even when I put power to 255 it still didn't do anything. I tried changing the PID settings and increasing the D seemed to help, but not completely fix it. Perhaps it's something in the follow mode since it seems stable when follow mode is off.