ANCO,
I used to fly from from the Paul TIssandier club right next to you at St Cyr! I returned to London a few years ago and have flown into or at a fair few of the clubs around the SE.
For better or worse, you'll find the clubs around London, although they are a varied bunch, for the most part a great deal different from a French set-up.
There is only one place I can think of that truly resembles the best of a French club...and is a gem in its own right.....The Tiger Club at Headcorn.
PM if you want some specific info on other places.
BFA