I have a Terrova 55 lb w/ ap and recently added wireless co pilot. This is one awesome unit for crappie fisherman. You can get up and walk around the boat without having to worry about the boat swinging around on you. However the ap only works well in low wind conditions unless you constantly adjust the speed for when the wind tries to blow you off course. Just added the co pilot on Friday and fished with it on Sunday. Worked great except for the speed adjustment was not infinite. Just one click and it seemed that it jumped up a little too fast. Steering worked fine with remote. Walked around the back of the boat piddlin around and adjusted motor to keep straight from there. Little on the pricey side, but well worth it. My catch ratio has definately increased since.