Remember that the battery connection to the rcvr will only pass 3 to 4 amps continous and at 4 probably not for long. On a Mojo, at a relatively slow 3D pace, servo draw will (should) not be a problem. Your peak current draw may be high but only for parts of a second. Just be sure not to stall any of the servos. To be sure you can check with an in-line current meter. It is really the only way to know for sure. Good luck.