OldFart,

I'm also a newbie. This excerpt from RCHelicopterFun helped me a lot with my CX3. The author of the site has been a huge help to me and my Blade and CX3. I spent all day on his site and bought two of his E-books.

(For CX3 only)
"<font color="#ff0000">MAKE SURE YOU RESET YOUR TRIM BACK TO NEUTRAL BEFORE THE NEXT FLIGHT.</font><font color="#000000"> If you don't, the heading lock gyro will see your left trim as the neutral position when you power up the CX3 and once again you give a couple more clicks to the left during the flight to compensate for the right drift. In a few flights if you never center your tail trim, you will have your trim all the way to the left with no more adjustment range possible. If you are using a computerized radio, ensure subtrim is also zeroed out."

If you're chasing your tail with trim as I was, this will fix it. What I thought was a bum servo was only poor settings on my Tx.

Iwas also on Horizons website and they recommended setting the Aile, Elev, and Rudd in the "Travel Adj" window to 125%. I am back to totally stable flight.

Enjoy.....

~Larry</font>