I see a lot of folks post about the difficulties in using the Extrude Along a Path command.  I too used to have difficulty with it as it is not the most intuitive tool to use in my opinion.  That being said, I have figured it out over the years and recently discovered a convenient use for it to define complex assemblies that follow the same path.   See the attached .vwx file to learn a little EAP kung foo.  Gain the understanding of why profiles seem to have a mind of their own and how