So, I'm just about to complete my DIY quadcopter. Finished assembly, and was testing electronics when I noticed motor #2 was vibrating badly. To cut a long story short I believe the connecting pins for slot #2 are bad, whichever power board I plug in to this slot, the motor still vibrates badly so much for "modular" design. I have ruled out issues with the APM or receiver.
Question is, has anyone experienced something similar with this ESC and been able to fix it? If not, what 6S capable ESC's would you recommend as replacement?