Are servo motors the prime reason for jitters or glitches?
Servos do fail but a grand majority of issues with servos is not the servo itself. Servos are motors doing what the transmitting signals ask of it; any break down in this signal will confuse the servo and cause it to get erratic. Many on/off switches have caused problems as have metal to metal noise, antenna, extensions or connections wires, battery state of charge or cells, area of reception, the list can go on and on but many folks look at the servos (who are reacting to a condition) as the main problem. (Big Mistake). If you simply remove and replace the servo be prepared for some possible excitement.
