The listed co-ordinates are NOT where the cache is hidden. To find GZ you need to answer the following questions.
At Waypoint 1 you will find the Northings Include the dialling code in all calculations. N58 A = 7th digit of phone number in the box, B = 2nd digit C = 9th Digit.
Looking across from the phone box what is the last collection time Mon - Friday on the post box? D = 1st digit - 3, E = 3rd Digit - 4
At Waypoint 2 you will find the Westerlies. F = 1st digit - 7 G = 1st digit H = 4th + 4 I = 2nd digit - 1 J = 4th digit + 2
Note: Exclude any letters or symbols at Waypoint 2.
Final co-ordinates are N58 AB.CDE W003 FG HIJ
The Fine Pair series was originally started by wizardsmum but is now managed by mattd2k.
If anybody would like to place 'A Fine Pair' of their own please do. I would just ask that you first visit www.afinepair.co.uk to request a number to avoid any duplication mattd2k also keeps a public Bookmark List of this series. Once your cache is published please contact him via email@example.com to have yours added.