Joined in 87 when in Sols arms and many venues since, the downside of London and changes in pubs and management particularly as many upstairs rooms became restaurants or expensive hires.
Venues I remember:
Sols Arms
Hemmingford-Caledonian Road
Ebury Arms? Ebury St near Victoria
RBL Marylebone near Baker Street
Prince of Wales? Warren Street
Working Mans Private Club Sloane Square
Conservative Club - Kings Road
Pub at Holborn
Pub behind Euston
Hop Poles Hammersmith- short term
Cock Tavern
The above not in order and more I can’t remember plus separate TV match venues like White Bear, Ye Olde Surgeon etc