Make sure ya always have fresh batteries in there.. It dont take very much of a voltage drop and they'll start glitching and locking up.. My nitro Tornado (1/10 buggy) can lower a regular set of alkalines, enough to start having glitch problems, in a half day of bashing.. Seems like it only took around 6 or 7 tanks of fuel to start glitching on the last pack I had in there.. I've gone to rechargeables now..  Good luck with yours!!