Barry, I've been looking through your postings-very neatly done-and noted your comments about ballasting points and your solution,
By observation I have noted that around and below the moving parts of switches there is little, if any, ballast, so that is the practice I follow on my PRB much to my relief and exercise of patience. It isn't particularly noticeable on the few images posted to date but you will see it when some more are.
This removes the difficulty in ballasting switches, and it is prototypical.