Well, after much deliberation I have bit the bullet and bought a Terrova 55 with i-pilot. I bought the 55 since my boat is only a 16 ft flat bottom but, I will take my 2 batteries that were used for my 24 volt T.M. and wire them so that I can have a "spare" in the boat for the long days. I'm excited as a kid on Christmas waitin on my new T. M. after reading all the high praises you guys have been reporting on this motor. I can't wait to record a trolling track and then "let er roll" and not have to man the T.M. every second of the route.