That would have been no use to me. I played there on Sunday afternoons. I played squash in the mornings in those days. Mind you, it was the early/mid 70s.
I played when I could but couldn't sign on for one team as I was out of the country a lot with the navy. Often it was bumping into an old mate in a pub or club on the Saturday night and being asked if I fancied a game. I had to pretend I was someone else as I wasn't registered. In spite of being small and hungover I was fit back then and fast which allowed me to evade most of the cloggers.