I would like to make one comment about the wording of "turn dual rates off" during setup. While not really, incorrect, I think it may be clearer to say, select the highest dual rate setting for each control surface. If that setting is 100% then you should have your dual rates set for 100%, if you must select set dual rates to 70% to obtain the highest travel that you ever want to use that won't cause control surface binding, then you should select that setting. Basically, during setup, one of the things the gyro is learning is the maximum travels it should use for corrections in order to avoid binding control surfaces. As a result, you should use the highest rates that it's safe to fly the airplane with that won't cause control surfaces to bind, etc. This is also why it's important to have the airplane fully configured with the proper control surface throws, etc, BEFORE, setting up the Cortex.

Don't mean to be a nit picker but I felt that that the otherwise excellent instructions might possibly be misinterpreted by some to mean that you should always use a dual rate setting of 100%, which depending on your radio setup could cause control surfaces to bind during gyro corrections.