Stan, yes, the two shot European system is the one in use today, just about everywhere. The last shoot I am aware of using the one shot, low gun rules was one event at the Hegins, PA Labor Day Shoot. This shoot closed down several years ago, but will always be a part of pigeon shooting history. My garden shed is about full of the old hand pulled traps from the Hegins rings. The one shot event at Hegins was really something to see. The two shot fields were full of Perazzis, Brownings, Krieghoffs, and high grade side by sides. The one shot field, alone and nearest to the residences of Hegins, was populated by Model 12s, Model 97s, single barrel hardware store guns, mixed in with the guns of more affluent shooters. It was an experience, shooting that field with a street full of houses, exposed on the back side, not much more than 150 yards from the ring.