I've built up a Tarot 650 Sport using the Mini APM Pro with DJI's E800 system.
My issue is, when I arm the motors, they all spin just fine, but when I give it some throttle, one motor takes a bit more thottle to spin up.. Full throttle they all seems to be ok.. I have checked the firmware on each ESC and even tried reinstalling the firmware on each one.
I tried moving the servo wires to a different motor and the problem occurs on the new motor and the original works fine. Does this mean I have a bad ESC?