Buzz Feiten Tuning System

Until now, the guitar, bass, banjo, mandolin, etc. are not instruments that can play perfectly in tune up and down the neck. This is because most stringed instruments are tuned using equal temperament. With standard tuning and intonation, even when using a very accurate tuner, some notes and chords don't sound in tune.
Test it yourself on a guitar:
Buzz Feiten noticed the piano was always in tune and wanted his guitar to be always in tune. His experiences with intonation problems led him to make small, but significant change to the guitar nut position & how the guitar is tuned & intonated. Now his guitar is always in tune. The result is the Buzz Feiten Tuning System (BFTS).
Use the Buzz Feiten Tuning System and the notes and chords on your guitar will sound in tune in every position. The better you sound, the better you play.
Hear the Difference Yourself
Come by the shop and play a guitar with the Buzz Feiten Tuning System. You will hear the difference. Your guitar or bass can be retrofitted with BFTS. The modification is a new nut and a patented tuning. If you change your mind, the process is reversible.
How it Works
The Buzz Feiten Tuning System solves tuning and intonation problems with 2 simple steps:
1. Installation of the Shelf Nut
The exclusive Buzz Feiten Tuning System (BFTS) Shelf Nut moves the strings closer to the first fret according to the Patented Formula. This eliminates sharp notes at the first three frets.
Buzz Feiten Tuning SystemShelf Nut

Top View : Each Shelf Nut is precision machined from high quality bone for superb tonal response. The Lightning Bolt Logo is machined into the top of each Shelf Nut for authenticity.

Side View : The strings are moved closer to the first fret a precise distance based on the scale length, fret width and string gauge of your guitar. The slight overhang of our nut (the 'Shelf') does this without altering your guitar in any way. So it's even fine for vintage guitars.
2. Intonation
Your guitar's bridge is adjusted according to the Patented Pitch Offsets, creating balanced intonation over the entire fingerboard - every fret - every string.
Your Bridge Is Adjusted to BFTS Pitch Offsets
