Recently, the USAF seem to have abandoned the routing Navpi-MAM-Gitus,(basically over Norfolk-Marham,then out west), for Clacton-Biggin-Southampton-Lands End routing!. Not sure of the reasons for this, but is great for sightings….been around 30 transits of both C-5 and C-17s on this route in the last 3 weeks. Happy days😁