I have used it more than I care to, just trying to get use to it. the best way to fish with one of the i-pilot units. is to record a trail of where you want to fish. and then let the trolling motor do the work for you. on your hummingbird fishfinder you can also select the dept to fish 20 or 30 feet from shore and the trolling motor will follow the dept you choose, and when you get to moving the speed you want to fish, just push the cruise control button and it will just ease alone and you don't have to do a thing except fish. this link will show you what I tried to tell you. only it will do a better job than I did. no need to make your joints sore anymore. let the i-pilot do the work for you.
http://www.youtube.com/watch?v=DDkPBA2ndds