JJ replaced the hinge pin on a shotgun of mine last year. Did a good job as far as I could see. The way he explained it there was a cap on the end that had the engraving on it like what 400 is talking about.

Unfortunately the 90 day turn arround is getting more and more common with the double gun smiths here in the States. In fact most of my guns seemed to be on a 120 day or so turn arround...