The issue for small boaters like us is that ENC’s do not have enough shoreline and depth detail to be as useful as paper or digitized RNC’s. For larger craft, they’re perfectly fine. I’d say 90% of the time, I use digitized RNC’s that I print specific areas for off my computer. Look just like traditional paper charts, and you can print your own.
I’ve downloaded all the RNC’s that I think I’d ever use, and have navigational software to view and plot courses on. The only thing a paddler would really have to do with older paper charts, and digitized ones, to keep them useful is to check the change in magnetic declination since the chart was drawn, and apply it to the bearings listed on the chart. That’s if you’re using a compass. The link to find that is: https://www.ngdc.noaa.gov/geomag/calculators/magcalc.shtml#declination
I’m sure if that page becomes no longer available, there are other sites that you can get the info from. And many paper charts (And digitized versions) are already old enough that you’d do well to find out, and apply the change if you’re doing a long crossing, or paddling in a large group of islands.
So I’d say if they are important to you, get the paper and digital RNC’s while they are still available. Digital ones are free to download from NOAA. I don’t like the idea of discontinuing the RNC’s, but it appears to be the future.
The Connyak BBS