RE: fish tailing
dude its' probally an alingment problem( if the car is not going in a strait line when your not putting any steering input) or you just got to get used to the "feel" of the car, i've been into r/c touring car racing for about five years now and won sum races and the more you drive the better you'll get and the better you'll be to control the car, just get sum more driving hours under your belt and that should solve the problem