In the early 60s, I guided duck and goose hunters on the missouri about 40 miles north of Omaha. The 3.5 inch magnum was just becomming popular in that part of the world. I remember 3 different brand names i.e. Zabala, Mercury and Dubois because we had all three. However, I don't remember a day when all of them were working at the same time. Not very good.

tight lines Jim Sears