My take is that the difference between a fundamentalist and a liberal (progressive?) approach is that fundamentalism tries to fit people into ideas where as liberalism fits ideas into people. With fundamentalism we have as many sects as we have ideas or rather sets of ideas. The liberal approach would have as many sects as there are people, which is why progressive churches are invariably broad. From this basis, I treat the question “What kind of Progressive are you?” with suspicion.
I resonate with a lot of what Lou said, but rather than claim that we have discovered another model for Progressive Christianity, I think that mutual acceptance of the uniqueness of our individual approaches is a better way forward.