Found a very easy way to prevent rim wear from my v-brakes, don't use them. When going down hill on my ride today I decided to just let it be and see what happens. Other than the hill that required a 90* turn at the bottom I didn't have to use the brakes once except to stop and have a drink. Minimal wear on pads and rim.
I realize this is not a realistic fix and I am only half joking but if I do not use them then in fact there will be no wear to be concerned about.
Be safe all, Frank.