Hi all,I cannot seem to be able to get my motors to start in sync. I have carried out ESC calibration multiple times now, during sync process motors start in sync and everything seems fine. However, after running all-motors sync, I reconnect battery and arm, motors do not start in sync.I even have had a case were only one motor starts then, disconnect and reconnect battery, arm and only one motor starts with another following shortly after, still two not spinning. When I give it %50 throttle the motor is twitchy.I have a pixhawk on a TBS Disco Pro running 900kv motors with bullettproof ESCs with Simonk. Appreciate any help you can offer!