Hi b-jazz.  FYI I'm using the exported course maps in a utility that turns them into files for a video game.  Anything tagged as inner/outer it fails to recognize and convert.  I realize that this is not your concern.  In my defense, however, I've been flagged before and at one point had a moderator tell another moderator that this convention wasn't mandatory.  Personally I've splined 100+ courses from scratch and never using this definition and not received complaints.  Anyway, henceforth I'll desist from making this type of change.  Perhaps I'll write the author of the program and see if they can code around this.  Regards, Chris