Belvoir Castle (near Grantham, pronounce it "Beever" or you'll sound like a !!!!)
Chipping Warden
Yate (on the end of Filton's instrument approach)
Prestwood (north of High Wycombe)
Spitalgate (in Barkston Heath MATZ)
Faringdon (south of Brize MATZ)
North Leach Roundabout (west of Brize MATZ)
Deenethorpe (near Corby)
I reckon examiners look for a MATZ or some busy airspace or an instrument approach and pick a point on the other side.......and the route always takes you over a million gliding/parachuting sites - never realised there were so many of them.