Been a while since I’ve played around with RCs. Decided to get a 14b yesterday at the LHS (they were getting rid of them at a great deal). The last time I raced RCs was with FM frequencies for the radio. While tuning this today with the steering and throttle, I am finding the steering to jitter every so often and occasionally the steering g goes all the way to the left for some reason (this is after I adjusted the steering trim). Any reason why this would happen.

Also, what are some necessary upgrades needed for this? I am reading how the gears could strip.