From a recent conversation here, I decided to try the Zero Glide Nut System for my maple Papazian. The guitar recently had frets replaced. Because of the neck profile, the guitar had a string back buzz when barring in higher positions. Tried a new bridge saddle with a 1 mm increase in height on the bass side, and the problem remained. My next plan was to get a new nut with higher grooves to bring the strings up enough to compensate for the condition of the neck.
The Zero Glide Nut System replaces your nut with a bone nut that shares it's space with a fret. The custom nut I ordered also comes with 4 different fret heights so you can get the lowest possible string height, or the desired string height in my case. I ordered the custom option that was precisely configured on a CNC machine. You need to get them precise measurements that allow you minimal final fitting. I recommend you use a digital micrometer. You can get a great one for under 15 dollars on the Bay.
I sent along my nut measurements of 52.13 mm wide, 3.50 mm thick and 8.3 mm total height. I also sent the following pictures:
Wayne Rogers was very helpful with my order process, and the custom Zero Nut System was actually sent the day we finalized the dimensions.
Yesterday it was delivered, and it literally dropped into the guitar with a perfect fit. As mentioned, the kit includes 4 different frets, the custom nut, and really great instructions. I had to reduce the height by sanding the bottom of the bone nut until the fret tang fit low enough so that the fret itself was flush with the fingerboard. I also rounded the edges and smoothed everything out with various grits of 3M polishing cloth. I could reduce the height of the nut between the strings, but right now it presents no problem when playing. The whole process took about 1 hour. If you are experienced at replacing guitar saddles, this is actually easier. It would also be a breeze for any guitar tech.
I enthusiastically approve of this system. It completely solved my issue of back buzz of strings. I used the highest fret option, and was able to go back the the original saddle with much lower string height. Tuning is smoother than ever, with no nut clicking! As far as sound, I think it may have better consistency of tone.
My reason for purchasing the Zero Nut system was specific, but I truly think it would be a plus for many Classical Guitars. Especially older ones that may suffer from years of sawing action from wound strings. You can always go back to your old nut, but I can't think of any reason you would want to!
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Last edited by Kent on Thu Jun 11, 2015 1:06 pm, edited 1 time in total.