Okay, i think i understand the points of view here. so is a wireless computer not reliable? i understand it has failure points (lost signal, dead batteries, flooding). I was under the impression though that the technology was pretty reliable given the regularity that i see experienced divers useing the Vytec. Would it be acceptable then to use the wireless connection for recreational diving and add on an spg for wrecks, caves and more intense diving? Most of my diving is for photography or simple enjoyment (or crab).