When it was brought in the workshop, the worst fret was recrowned to see if it could be salvaged. Even after an aggressive reprofile of the fret, the dings were still so deep that the strings buzzed and sounded dead when played.
The custom didn't want to go for a full refret, as further down the neck the frets were almost completely untouched. The decision of a part refret of the first 6 frets would be the way to go.