My two cents:I have an oceanic oc1 and my wife a liquivision lynx. We both have regular spg's as well for backup. The AI is so accurate that just today I was thinking of removing the traditional spg's so I can place another transmitter for both computers having only two high-pressure ports sucks!, that way if one fails my wife can check my pressure or I can check her pressure. She will also be able to locate me through the liquivision sonar.