A method and apparatus of optimizing transitioning between EVDO and CDMA 1X systems in a hybrid access terminal, the method having the steps of preventing a reconnect data call from being sent from the hybrid access terminal. In some embodiments, a single sequence is sequenced by at least two different sequencing techniques and the results compared, allowing for deficiencies or strengths of one technique to be complemented by the second technique. A cylinder head is connected to the cylinder barrel. The device may also include a stapling element disposed within the second jaw. The various systems of the unmanned vehicle may be independently operable to support selective operation of the unmanned vehicle in the air, on the surface of the water, and below the surface of the water.