Looking for some help. I just bought a HB 597ci hd di a couple of months ago. And I must say that I have been impressed with the way the unit has worked for me thus far. So I have decided to move this unit to the bow where I spend most of my time. It will be replacing an old 535 unit that is black and white. My ? Is what would be the best thing to replace the 597 with at the console? I have been looking at the HB 798ci si side-imaging unit. If anyone has this unit please let me know what you think about the unit how it works for you and the screen size when in SI mode. Any help would be appreciated