I went out to Paul Fisher's and had what he called a Zidi fig which looked very much like the one in the picture and tasted fantastic. He's not importing any wasps, and the tree sets all kinds of fruit.
From what I understand regarding pollination, the wasp enters through the eye of the fig, and rubs up against the pollen laden hairs (forgot botanical term). Then goes to another tree and repeats, thus pollinating both.
However, the eye of the Zidi is either closed or nearly closed... it seems like this would thwart the process, but perhaps what I had at Paul's was not a true Zidi.
I have heard that a pollinated Zidi is very big. I've emailed Richard Watts to try to get Malibu guy's contact info, but that was a while ago without response. He did mention the name "Cunningham" though.
edit: Richard emailed me back to say that Caprification is not needed for Zidi, and has nothing to do with size. Not only that but those wasps will cause every other (self-pollinating) fig in the vicinity to split. Ok, now I know.