Hi Michael,

I'm was a bit surprised by this shading error on simple loft or single curve sweep scenario.
Of course the revolve did the job to create that kind of shape, but I personnally feel more confortable to create them with the loft command.



(This 'not so nice shading' is also visible in the .lwo exported model)

Greetings from Montreal =)

- Edit

Looks like choosing Profiles / Exact resole the loft problem (Maybe 'auto' is a little bit too sensitive )
But single rail sweep is still giving weird result.