trex 450 se v2 jr770 gyro , dx6i rdio
my tail is mechanicaly centered, even travel both ways, blades straight, but in flight I have to add about 45 sub trim in the radio to keep tail from drifting to the right. i have about 63 gain set on the radio, any more and it wags. shouldn't the gyro adjust for the drift? or is it normal to add trim for the tail to adjust for rotor torque?