I have owned a couple, but they were trade-in guns, not bought from Mr. O'connor's comments. One was a decent gun, probably on the quality level of a mid grade Victor Sarasqueta gun (another popular Basque name with many cousins and wannabes trying to emulate the one and only Victor Sarasqueta) and the other not nearly up to that quality level, although both were essentially the same quality gun. Both were double trigger guns. On the subject of single triggers from Spanish makers, I have found ST guns from the low end makers to be problematic, but ST guns on high end Spanish guns to be just fine. I have two, one on a M53e Aya, the other on an upper end Ignacio Ugartechea Merkel O/U clone that are both excellent, never missing a beat. As in all things, you get what you pay for. I remember the passage wherein Mr. O'Conner praises the Arizaga gun he had, I do not know for certain it was a Gaspar Arizaga, if Mr. Brown says it was, I would not argue the point with him, however. The two I had were Gaspar Arizaga.