Dear Dave, Richard and Michael,

Thank you for your quick and thoughtful responses.

Dave, I've attached to this message my .fil units file. Had I known it could warp my geometry, I would have been more careful in creating it, but since my topographical data was in m, I figured it would just be simpler this way.

Richard, I'll try your approach and let you know if it did the trick, thanks.

Michael, I'm actually working on a pipeline that's already out in the field, so fiddling around with the supports won't do me any good.