Cyberdan,
The tuning of your Walker would not only make shooting it more fun, but will also prolong the life of the parts. The open top revolvers suffer from modern assembly which doesn't allow for hand fitting at the factory.
I make them very close tolerance machines that allow a long , jam free, non binding cylinder shooting session. I would refer you to the thread right here in the black powder forum that shows Brushhippie shooting Washbusters 3rd model Dragoon (with fanning). There's also a video of him shooting a '51 Navy (YouTube).
Pm me if you'd like more info.
45 Dragoon