Rocketman,

Your picture saves my thousand words.
The couple of guns I had put on face show that the welding was built more towards where the word "weld" is in your picture (4-5 o'clock)and not necessarily at 3 o'clock. I have not checked and see if there is full contact between the pin and hook after welding. Maybe the lower weld produced two raised area into the hook, like 1 and 5 o'clock thus putting the barrels on the face, but without full pin to hook contact at 3 o'clock. I am going to have to check that.