I don't know if he still does, but, at one time, Cole Haugh made and sold a dandy tool for the job:
The idea above for using needle bearings to make the pins is a great one.
Problems with disc set strikers? Do elaborate. If you have a disc set striker fail, and you have the tool and a spare, you can be up and running as soon as you get back to the truck. If you don't have the tool and spares, shame on you. You at least had the option.
If you break an integral striker/hammer, you are done for that season, and, often, the gunsmith doesn't get the repair quite right. It is a difficult task.
Few of us will ever own a detachable lock Westley with a spare set of locks to get us back up and running. Few detachable lock Westleys even came with spare locks. Disc set strikers are the next best thing.
Best,
Ted
