Branston pickle recipe

[pg]

I've found Qahtan's 2010 recipe:

http://www.allotments4all.co.uk/smf/index.php/topic,62035.msg634283.html#msg634283

but I wondered a) how did this one mature? and b) anyone had a go since at replicating the real thing?

Been Googling a bit and various home-made recipes abound. But the authenticity seems to work around the spices and flavouring of the dates - although I have seen versions using tamarind and Worcestershire sauce.

Any tried and tested versions out there?

[pg]