Hi Rog,
Welcome to the forum, and the world of bocking.
Clive of the Banned Bockers holds regular indoor and outdoor meets in Hanworth, and also surrounding area all the way into London.
They did one last weekend, and to be honeest I think they tend to arrange them every other weekend if not more often.
The is also a very good crowd in and around Basingstoke / Reading / Newbury (TV (Thames Valley) Bockers) who I travel to meet up with every now and then.
Between those 2 groups, I suspect you would be able to meet up with someone most weekends you wanted.
Hope this helps.
Bu the way, are you around this weekend to visit the walk for life? Even if too early to Bock or you're not free all day, might be worth a quick visit to see and say Hi to some of the guys going.
Graham