The Zero Glide performs like the manufacturer claims it will. It took less than one hour to complete the installation and have the guitar playing. The nut I removed was cheap plastic and the thin wires had cut down into the nut to the point that there was severe fret buzz on the open strings. The Zero Glide cured that and has all of the strings at the same level. I used a disc sander to shape the nut to length and height in a few minutes. About five more minutes and the nut was polished. The installation looks good. I suggest a person view the manufacturer's installation video before doing the installation.
I've got a '67 Gretsch Country Gentleman that has what they called the zero fret. I had always wondered why didn't anybody else do this. I put this on my 2010 Gibson Lucille and it solved the nut drag problem. I'm also going to put it on my '76 Les Paul Deluxe. A great solution to an on going problem.
The bone nut was easy to install. I sanded the length and depth with a table sander. The instructions are complete and easy to follow. Four zero frets of different sizes are included in the banjo kit--you try the smallest and work your way up until you have no open string buzz. Use medium viscosity cyanoacrylate (available from Stewmac) so you have time to set the nut and fret properly. I'm pleased with the results, improved tone, and hammer-ons and pull-offs are more defined.
I play fingerstyle guitar. My favorite guitar is a Gretsch 5420 Electromatic . For some reason the designers at Gretsch moved away from the zero fret. When You string up with 10's or 9's I guess it probably doesn't matter much because the first position will be easy with light gauge strings. My touch and style of playing requires .012's. With heavier strings while the 5420 is beautiful to see and hear the first position was challenging to play. I installed the zero glide following the instructions in the package and to my amazing pleasure the 5420 played like my '66 Nashville used to. I couldn't be happier. Thanks to the people that designed this product. The tone is great the tuning is improved and the first position action is second to none.