Make sure that all of the screws go into those plastic eyelets on the heli. That will ensure that the servo does not move. Wiggle it with your hand to make sure. You certainly don't want a servo moving on you. With what you have said you should be fine. Congrats on selecting an awesome heli. I have been totally pleased with mine. What gyro and tail servo did you go with? I first had a JR 460T with a 537 servo. I switched to the GY 401 with 9253 servo and it has been total bliss. Hope this helped.