Some of us got to see her before she flew. ;-)
I believe I was able to see Fifi shortly after she became airworthy. She flew into Municipal Airport in Kansas City for an overnight stay. It wasn’t quite an “air show,” but as I recall, there were a few other planes there along with her, and they did allow the public to see them as a “static display.”
I did notice that there were quite a few puddles of fluid underneath the plane.
Some years later I did get to see her in an air show, but didn’t get to take the tour.
Mark