Mil gracias, muchachos. The soft metal issue can be an issue on the older Spanish guns - a friend recently showed me a photo of a mushroomed firing pin from a 1980s Arrizabalaga. It was discovered when the left barrel stopped firing.
This gun performed without a hitch during 75 rounds of sporting clays, and my gunsmith did not see any concerns with this gun. Presumably any soft metal parts would have made themselves known after 70 years of use. The left mainspring has been replaced - I would have thought the right spring would be more likely to fail first, mas quien sabe?
