I don’t think so. It is hard mounted to the frame via a carrier board. I really don’t think it could be some resonance of the mounting. After doing the autotuning and dropping the cutoff frequencies, the flight response did improved. Looking at the Accel and Angular Vel PSDs, I see high power at 60 Hz, 80 Hz, and 120 Hz. As you mentioned the 80 Hz is likely the Cube’s isolator frequency. The 60 and 120 Hz are likely related given the 2x factor.
