I'm telling you when you cross the pond, you have to use great circle nav. Which only works in FET in the northern hemisphere. If you were to head down south you would see there is no way for great circle nav to work the way it does in the southern hemisphere without the earth being a globe.
BTW just for the record, in Herk land we used multiple different methods for navigational aids prior to GPS. The Corps didn't see the need to upgrade us to GPS until recently. So its not my GPS lying to me or anything like that.