If you have problems like mid throttle oscillation or yaw twitches, soft mounting your flight controller is the prescription. The usual approach of using O-rings isn’t great. My preferred method is to use rubber standoffs. These completely isolate the FC and provide the best vibration isolation.
* Banggood (International): https://goo.gl/Av8AyU
* Global Industrial (US): https://goo.gl/v6lXr3
* ReadyMadeRC (US): https://goo.gl/54TxD9
* Multirotor Mania (US): https://goo.gl/GWkbe7
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