[Rich]

I purchased a Navionic's 'Update +" chip two years ago. It allows you to load just about any area you would like for a year.

After reporting some issues I found, they even made some corrections, so they are very responsive. I also learned that the source of their data was Bizer, I'm not sure if this was a one-time license with Bizer, or if they continue to get ongoing updates from Bizer.

Either way, i'm very happy with it on my older Raymarine chartplotter. It even shows the locations of most docks, which is more than one could ask for IMHO.

Considering that my boat is sort of stuck on lake Winni (it's too big to trailer), I loaded the lake (of course) and some of the coastline east of us, just for fun.