Thanks for the info. After posting, I found that thread. It seems everything Garmin ends in a roadblock. Sad.... I'd be more than willing to pay whatever Garmin charged for map updates, be it lifetime or singularly. I will need to rethink keeping the 665 around.
Just curious as to what Zumo features are missing on the Navi that led you toward having both in use?
Shellback - 1987
2017 - Goldwing Navi ABS
2011 - Road Glide Ultra