Official Luthiers Forum!

My question , concerns a thin walnut neck which tapers from 34 mm at the nut to 44mm at the 12 th fret .Its a 600 mm scale . its an 8 string bouzooki. Reading up on the internet literature. electric guitar builders suggest a curve in the middle of the FB. Is this viable ?. or is a flat slot preferable ?. I have already cut a 10 mm slot for a single action truss rod. Which leaves abt a 1/2mm of clearance over the truss rod. The adjustment will be at the headstock. This will be a bolt on neck . TNX in advance