i have the warrior 9918 and it glitches like you wounld' t belive.
its not the radio equiment cause i have tried diff radio's.
if i gun it from a dead stop it just sits there and twitches for about 2 sec takes off. i dont know what it is i use a battery for the reciver.
but for some resaon once i get it going it runs fine , the prob is when im starting out. like accelrating .