I dont think its the radio either. My Fly sky does it to. I think there is something wrong with this new esc. I put the fly sky with my new 80A in my emaxx and i have no linear throttle control (its either full throttle or no throttle). After the fire hydrant had its way with my truck, i put the fly sky in the evader with the new 60A esc i just got. It works perfect with that esc. Great throttle control, no glitching etc. Perfect. SO i am going to try and return it...