I'm running the Futaba 4PLS, I've heard that the Savox doesn't play well with the CC MM2 ESC, problem is the ECS puts out 5.5v, I think there may be an issues there. I've always had great luck with Hitec, my older 1/8 buggy ran a Hitec and MM2 with no issues. I just picked up a new Hitec servo. Thanks.