"The original "back and forth" routing were done because people at that time didn't know you could go in another direction"
I can't believe I read this correctly, but it does say this. Matt, routings such as the Old Course, Royal Aberdeen etc that are true out and back courses are like that because they follow the links land that was available for them to lay the course out on, not because they could only go in one direction. If that was so all Scottish roads would be straight! if you look at Royal Aberdeen as an example, the links land between the ocean dune and the arable higher land is effectively only 2 holes in width and they followed this links land, not because they didn't know how to lay out a hole in another direction.
End of dissertation
Neil Crafter