I currently have a 520c on the console of my boat. I would like to add another 5″ unit so I can have sonar on one unit and mapping on the second unit. I am really looking into the HDS 5x unit (sonar only). Then I would use my 520 as the mapping unit.
Am I going to regret not getting GPS capabilities on the HDS unit? There is some really good deals on the HDS 5x right now. I was trying to find an older globalmap to add for mapping only but those things are a couple hundred bucks used. (when I can get a HDS 5x for less than $400)
Thanks!