I use a Lowrance Elite7-HDI on my kayak and love it. Screen is wide enough to display 83khz and 200khz side-by-side, great wide format display. worked great for kokes at GP last year and during the fall run on the Slaw, using both frequencies, I felt that I could differentiate between kings, cohos, and smaller fish (searuns and jacks). It would also be a great unit for displaying sonar and chart side-by-side. Looks like a $100 rebate would get you one for about $599 right now, maybe a little less...cheers, roger