as long as all your mechanical parts for the linkage are all pretty well centered. you should be able to set the transmitter trim to 0, and the heading hold gyro will keep the heli from moving, if it does wander alittle you might have to turn up the gain on the gyro, if you set it too high though the tail will start wagging, most people usually set it until it starts to wag, and then turn it back just a hair.