WGS84 and the previous system (whose name escapes me, OGB something or other ?) are only likely to give a difference of a few miles at most.
The names of reporting points are not always exactly over the features they are named after. As the aircraft are operating using navigational aids as opposed to visually, the actual location of the waypoint over the ground is of little relevance.
The points are named referring to a central database. This ensures that no similar sounding waypoints exist within a certain radius and that certain letters or combinations which are difficult to pronounce are not used. When an ATC unit wishes to name a waypoint they normally submit several choices which are fed through the database wurlitzer. If it's OK and not in use then that's what will be given. If not, the system will offer up alternatives, which are usually random names with no obvious connection, e.g MATIK, OLKER, TADEX.
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10 West
UK ATC'er
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