Never got as far as the Trident Club, but I have happy memories of the others. Including crawling on the grass outside the Vanguard Club looking for my wife-to-be's dropped contact lens.
Used to frequent the Comet Club when I lived in West Ken. Usually full of drunk cabin crew.
Pionair Club was where I had my farewell p*ss-up, fond memories of breakfast at 3am in the adjacent Runway Restaurant on the night shift ...