Dborn, what quantitatively has been your SC visits (it's on your profile https://photos.smugmug.com/photos/i-2njZHpv/0/710816dd/O/i-2njZHpv.jpg ) since you purchased the car? It really does sound like your vehicle has reached the point where it's safer to charge it carefully, rather than at the maximum the SC can do. With your specified 50 charges a year that's 250 high power DC charges since your delivery date, which matches the battery degradation protection algorithm.