[quote name='Grand Wazoo' timestamp='1338251182' post='1671774']
Blue... may I suggest an interim meet at someone's place, i.e. bring your own (bass & backing tracks, entertain us in rotation) bring your own drink & food, cook, wash and leave the place as tidy as you've found it? If that will suit most people then I am happy to welcome a decent number of you's, (no more than 10-15) I have a big garden, free parking on my street and very understanding (young) neighbours.
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I've done that for BBQs with friends who live in my area. Not sure how it would work on a London-wide basis, though, as it implies a few of the group - the girls, usually - meeting up at the house a few hours earlier to get everything ready, and then either staying late clearing and tidying up or going back the following day.