Actually the Chart plotters work great so long as you get the inland Topo Maps. They have a much larger screen, which makes it way easier to see in a SxS. The Lowrance Baja unit is very popular with the off road racers. But if you look at the design & specs, it is no different than the marine chart plotter. They have the capability of adding topo maps via a San Disk cardHow's the fishing on your trails?