i just bought a 1/18 exceed mad pulse (nanda nrx-18) it turns great with stock 2.4 radio.when i put my spektrum dx3s radio in it the servo sounds like it binds and the rec. light goes off and on.I called spektrum and they were no help.

does anyone think it's the 3 dollar servo it came with if so whats a good micro servo to use to handle the spektrum. also i want to use the xray m18 servo saver

thanks