GDW: YES, micro servos that are hi torq draw a lot of current. I believe if you read your ESC instructions, they will have shown this limitation. MKF

Current draw for this servo is lacking in the specs. My ESC with a 3A BEC couldn't drive 4 of these. If I had known how much current this servo required, I wouldn't have wasted my time troubleshooting the receiver dropouts.