if you are looking for a troller with spot lock and still have cable steer feel and capability get the motor guide tour pro. i have one, and it is awesome. the steering is just the same as cable steer because it is. you do have steering servos kick to assist, but you have no lag time in the steering. the spot lock is as accurate as it gets. the bracket is better, heavier, and has full 360 breakaway.
if you are looking for a 36v, i can get you hooked with a person that has two for sale. he got them in exchange for advertising. he has one of them on his boat and likes it much better than the ultrex he did have. i believe he is asking $2300 and it has the built-in sonar too.