One of the really cool things about a PLEK machine (that doesn’t get discussed often) is its ability to plane the fingerboard surface before fretting. This is where the magic happens. Manufacturers that utilize PLEK during the build process are able to get the full benefits of a “perfect” fretboard surface prior to fretting, and “perfectly” leveled frets. Luthiers like Glaser that use PLEK to do refrets are also able to true the board before fretting to get superior fret jobs.
In my opinion, only touching the playing surface of a fret on an existing fretted instrument is not really exploiting the full potential of PLEK.
In my opinion, only touching the playing surface of a fret on an existing fretted instrument is not really exploiting the full potential of PLEK.

. Then adjust to my taste…which is the lowest action and some minimal fret buzz for character.