[Talk-GB] Ordnance Survey 7th series available

[Someoneelse]

Steve Chilton wrote:
> If you can quantify any displacement it would be useful. We intend to try to check this and see if any improvements can be made to the process.

Another thought - is the displacement constant across the sheet?  I've 
noticed with the NPE sheets that some parts of one sheet are offset one 
way relative to GPS data, whereas a couple of miles away there's a 
different offset (and it doesn't look like a sheet fold / not flat issue).