"....I've heard that in Florida, average boaters were 93 years old and were so blind that they had to drive their boats by relying only on computers and monitors inside of their air conditionned trawlers..." Nah, that's the MINIMUM age. We don't start boating until we "age-out" of the shuffleboard league. And we are Luddites when it comes to chart plotters and other "confuses". We boat the way we drive our cars. We go along slowly and when we bump into something we bounce off and continue on our way. :>)) Regards, Randy Pickelmann Morning Star lying Osprey Marina in SC Sent from my iPad