I referred to some "teething" problems in my previous post. I'll elaborate.
1. I kept breaking the cross-pin that holds the two halves of the Bomar copy adjustable sight together. This was I think in part due to the elevation required on the rear sight to get POA=POI at 15 yards. I've since replaced the rear sight with a rear Bomar and a new shorter front sight and it's for thousands of rounds with no problems.
2. It stopped extracting after about 3000 rounds. This lead to FTE failures and I eventually chipped the extractor hook. I believe this was due to gunk getting in the channel the external extractor is in restricting its movement. DW sent me a replacement free of charge. I stoned the top and bottom sides of the new extractor before I put it in so there was less friction and more clearance, and have had 0 problems since then.
About a year since I bought it, this gun is a workhorse. I don't clean it often, it runs reliably, and shoots good.
-z