Hi mitcorb, I tried some of them and no one can produce proper result with the situation in the screenshots - they all break where the 3 edges meet. Pipe Along Path is not processing the request , it complains because the edges are not a valid path. It could be I did something wrong when using the plugins, or maybe none of them is intended for this scenario.
The best results I got are the ones using Follow Me on various sub-paths and then intersecting and cleaning the mesh, which is still a viable choice if the mesh is simple but it becomes a no-no when things get too much complicated!
[image: http://dl.dropbox.com/u/12003764/compedg.JPG]