I started with a 93 and ran it for a year. I am currently running the 1242 GPSMap unit. Like most here I started out with the 9in and it worked but it didn't take long to want that bigger screen plus I wanted a unit that had the helm feature for recording my screen. I may be adding a 2nd unit for mapping. I have been experimenting with a split screen running the mapping and livescope view on the same page