This thread and match reminds me of my time in correspondence chess, when it was still done the old fashioned way, with postcards and numberstamps. It was my thing. A match lasted months, over half a year, sometimes almost a year. I won three sequential qualification tournaments in a row and ended up in what in the German
Fernschachbund was/is called "Meisterklasse". That was in the late 80s - killer software played no role yet since it did not yet exist.
Having a TBA on the chessboard would have come handy in some matches...