This is the First Time anything was Installed a new kit New Everything I tryed 4 Differant Recivers Brand New., 3 battery packs 2 brand new The Only thing I can Come up With Is the Metal Gears in the Servos I have 5 cars on 1 radio M8 and the new one (Impulse #2) is the only Car that has metal Gears Servos and the only 1 Glitching.I also tryed a Differant radio And For the moment It is Working Ok. a( JR racing) What Confuses me is Why only 1 in 6 cars Glitch Even If I remove The Reciver From The Non Glitching Cars It still Glitches in the Car. Like I said so far I thinking its the metal Gear Servos. Its the Only Thing I can Come up with. thanks For any Help You May can Give Norman