ORIGINAL: panhndl
...I talked to Hitec, and they suggested using 1) twisted wire, which I am not, and 2) putting some ''ferrite rings'' on the wires to help with interference. I found some on Tower, but they were discontinued. I'll be ordering the twisted wire, as well.
You don't have to replace the servo wires, just twist the ones you have[8D]. But fix the problem, don't just jury-rig it. JMHO