I have a relatively new S800 with AV200 Gimbal, WKM FC and HFG. My motors are balanced to perfection as are my props (and hubs). There is no vibration whatsoever making it to the HFG as it is mounted to the front of my gimbal which is very well isolated from vibes. Despite my best efforts I continue to get this annoying little twitches which ruin my video. I have tested all versions of the HFG firmware but still get this result (I have tried mode 1 and mode 2). I have tested endless combinations of gain settings yet I still have these twitches. If you look at this video and pay attention to the horizon in particular you will see how it jumps around. It does this in ATTI and GPS flight modes. In this video I am in ATTI mode so as to take the GPS factor out of the equation.
I would be grateful if anyone would be willing to look at this and offer any thoughts as to what might be causing this. Happy New Year.