Looking for bottle share in London

You are probably already well aware of this, but the UK drinking scene is really centered around the pubs. I've done bottle shares here with friends/office mates, but it was usually me bringing bottles for everyone else to try so I could push them toward better beer habits. Since the beer culture is centered around the pubs, the idea of going to a brewery for a special release is (almost) completely foreign to the UK. My beer cellar is almost all Belgian, but I drink almost all UK craft beers at the pub.
Now if a Belgian beer like Westvleteren 8 gets you excited, I'd be happy to see if there some way we can do a convenient exchange of a couple bottles and you can PM me if interested.