U Can Do 3D
VGUY3
For starters you will want to use the "Ailevators" condition in your radio, plug your right EL. servo in to CH. #2 and your left servo into ch. #5( this is how the 9 zap works and I would venture to guess the 9 C is the same) Use the sub trims on each channel to get a perfect 90 degrees between the servo horn and each pushrod. Follow the book on getting the proper direction and throws. Depending on the servos, you can get perfect neutral and end points and damn close on anything in between. You can mix out anything you deem not hands off at partial deflection.
Hope this helps, Rob