Floyd Rose Nut Shelf Height ?

String Height at the Nut1st Fret J45 nut slot height My method is to fret a string across both the first and second frets, use feeler gauges to measure the height of the frets, add a couple of nut slot depth I've actually done this using a thin sheet of metal on a beater classical guitar that came from the factory wiith the nut slots cut too low It

nut slot height 021” when initially shaping the nut by measuring the first fret height, adding 021” to that, and stacking flexible feeler gauges up to that