Local pilots always take the p1ss out of this - along with instructors, they know every sheep down there
Local pilots often consider themselves "experts" but in truth don't get out much. The real test is, of course, how good are they at finding other people's non-published "VRPs"?
I like to load relevant official VRPs into my aircraft's database (Garmin 530/430) before departure. The coordinates can be found in Pooley's guide, or similar. To be honest, I'm surprised these aren't loaded as standard, by the manufacturer. The Luton ones in particular, as transit aircraft are often required to hold at these before crossing clearance is given.