KSP - Orbit through an Arch

Scientific knowledge acquired: polar orbits induce HUGE longitudinal drift, even around the Mun. I took off, and passed through the Arch after 1 full orbit, and had to burn East a lot to get it right. 1st try: 14 km off (even with course corrections). 2nd try: through the arch. 3rd try: right next to the arch. 4th try: watch the vid ;) Oh, and here’s the persistent file in case you want to try it out: