Well, I used them Underwater in 1998! those were really the LAST!
Since I compared Kodachrome with Fuji Velvia, both perfectely developed in Japan, Ap-1991, I gradually stopped using the 1st.
After this last try, on the Seychelles, I was finally convinced, and for always, of the superiority of the Velvia.
It was also my last use of my beloved Nikon F2AS!
Stupidly, I sold it, and now I am dreaming of getting a collection one... For memory!