Agreed. The U.S.-style fixture, floor, pipe flange, and wax ring all have to work together. A terrible interface design. I haven't seen the Australian style, bu

Agreed. The U.S.-style fixture, floor, pipe flange, and wax ring all have to work together. A terrible interface design. I haven't seen the Australian style, but when I saw a UK style I was very impressed by the pipe-to-pipe link in the rear.