Digital switching is one of the most intriguing aspects of modern marine electronics, but also one of the most mysterious. At FLIBS, for instance, I wasn’t the only boater jealously admiring sexy screens like the one above running on a Raymarine gS15 multifunction display. But when you try figuring out how you can get this elegant level of system control and monitoring onto your boat, you’ll eventually realize that there is a complex conglomeration of hardware and software behind it, and it’s usually under marketed and lightly documented. In fact, the whole concept still mainly makes sense for new and higher end boats, because it’s an expensive and entirely different way of doing things, and those builders remain understandably cautious about adopting it. Nonetheless — and another sign of a re-invigorated recreational marine industry — I detected lots of digital switching progress at the fall shows…