I bought a new fish finder for the front of my boat and a skimmer transducer was included. Lowrance mentions that it can be mounted to the front trolling motor, which I want to do. This may be a dumb question, but since the prop of the trolling motor is facing towards the rear of the boat when it is in the water, which way should the skimmer transducer be mounted? Should the flat end be pointing forward or should it be pointing towards the back of the boat?