I agree with Rob, it's not a clean job on that nut.
The Zero Fret seems like it would be a good idea, their must be some disadvantage or it would be in wider use. Maybe the headstock angle would need to be more than the slab most builders use on electrics.
The Zero Fret seems like it would be a good idea, their must be some disadvantage or it would be in wider use. Maybe the headstock angle would need to be more than the slab most builders use on electrics.