I was given a Garmin 4212 by my father inlaw. Wharf Rat set me up with a new Garmin HD Radar and backbone. I found a cheap used GSD22 for my sounder a B117. Now that everything is installed I updated Garmin SW. I also checked for chart updates. Not surprising my chart "US Canada Bahamas detailed map. V2012.15" cannot be upgraded. My question is if I spend money on a new Bluechart will it be worth it? I know having a current chart is better than an older chart but I wanted to see if anyone else is running a older Garmin plotter and new charts.