Humminbird for Brem Beds

Has anyone set up a 798 Humminbird SI for scanning for Brem beds? Please share. Heading to FLorida on April 2nd for a week.

There is really nothin to set up If their there you will see them. I would stay off the bank a ways and scan that side only on full screen. They kinda look like a rough piece of sand paper in one area. Im sure you could find some 798 shots of them on you tube. Good luck. Nothin better than catchin gills on the beds.