I just purchased this unit for my salt water boat. I think the SI will help me locater Striped Bass along edges. My boat stays in a slip for most of the season. I would like to use a anti-fouling on the transducer. I used Airmar Prop-Speed Foul Free on my other transducer last year and it worked great. Any reason why I should not use the Airmar Foul-Free on the Humminbird Transducer?