I'm running the same electronics as Yosh in My:

Losi 8ight 2.0
Losi 8ight 2.0 Truggy
Losi 8ight 3.0 Truggy
Mbx7Eco
Mbx6 Truggy
Mostly Spektrum 4210's but one or two other spectrums are mixed in there and my box as well, and 2-dx4 radios and no glitching as long as the front wheels are not in a bind, like something leaning on them or whatever and it will try and constantly keeping it centered. I'm a novice so if any one can screw it up its be me, so it is probably faulty parts or your AVC is not completely off, turned down is not off I found out.