Customer brought in a 25.5" scale guitar which was previously butchered by someone trying to install a locking nut. I must rebuild the nut end of fretboard and re-route a new nut slot. What is the distance used by PRS on 25.5" scale length guitars for the nut compensation? Need distance between 1st fret and nut at low & high E strings. Tremonti Baritone hybrid tunes as C# .