Telebee Gyro 701 / 703

Go ahead and lift the model into a hover and switch to heading hold mode. Do your final trim to keep the nose from turning. Turn the model into the wind and switch to normal mode. Careful here, the model will probably begin to yaw. Get some help if you aren't comfortable with nose in. Make a mental note of which way it turns. If it turns left, shorten the tail rotor control rod. Repeat if necessary. That's it. You're ready to fly...backwards, sideways or upside down...even straight ahead.

Fine-tune the gain using ATV. In heading hold, the gain should be set as high as possible without wagging. Bump up the ATV on the aux channel until you notice a little wag, then back off a little.
Tips
The ATV on the aux channel controls gain. The ATV on the rudder channel controls how fast it will pirouette. If the rudder seems too sensitive, put some exponential in on the rudder channel to tame it down around center.
A little drift is to be expected, especially during the first couple minutes of the flight. The more you fly the rudder, the less you'll notice any drift.
The best tape for mounting the sensor is CSM tape (CMLG150). The tape provided works okay do not use wire ties or Velcro to secure the sensor. It will transmit vibration to the sensor. Also, be sure nothing is touching the sensor, including servo wires.
Mount the sensor on a steady platform. Any vibration will have a bad effect on the gyro's performance. If you use an exhaust diverter, cut it as short as possible. Mount your exhaust using a rigid mount. Make sure your boom supports are in good shape and there are no loose bolts on the machine.
Spend whatever time is necessary to get your control rod and slider operating freely. Keep your linkage in good shape. The links won't wear out as fast as the balls. When you notice play fix it. If your control rod buzzes, find out why and make it stop. Buzzing rods will break in short order.
Use the longest, stiffest tail blades that you can safely fit on your model. Remember the tail rotor puts a big load on the engine, in upwind maneuvers especially. If engine speed/head speed disintegrates, so will tail rotor speed. When that happens, you can expect the tail to let go. Power is good.
Do your best to keep the head speed constant? If during a descent, you notice the tail wagging, it's usually because the head is over speeding, causing the tail to turn faster. Fine-tune your throttle curve to prevent this.