I suppose the heading error from the compass is so large there is little reason to use the real geodesic (https://link.springer.com/article/10.1007/s00190-012-0

I suppose the heading error from the compass is so large there is little reason to use the real geodesic (https://link.springer.com/article/10.1007/s00190-012-0578-z https://link.springer.com/article/10.1007/s00190-012-0578-z) as opposed to the great circle