I just got a Humminbird 788ci HD Combo, and it is great. Because of the location where the unit is mounted, I had to go with a Humminbird again.
I did get the Navionic Hot map East , but when John and I were looking at the GPS, we didn't look at the deliniation. It is 3 feet and not 1 foot. For Squam. I think three feet is better, otherwise, the screen would be full of lines. But I will check with Navionics to see if it is suppose to be one foot.