alistair I suspect the reason so few of us saw these female DJs in the 90’s is because the industry was so blatantly sexist. They were all as good if not better than the very well connected Judge Jules!
Er, I saw most of them, just not Lisa Loud.
I think there was some sexism, but not of the sort you mention. I saw Lisa Lashes, Anne Savage (they were regulars), Lisa Pinup and Lottie* at Sundissential, who seemed to have figured booking loads of female djs had UV-wearing teenage boys queuing up to cream their pants over them.
*My memory does not deceive me, she definitely played Sundissential a few times when she was less well known, early on though, to a sparse room.