I'm about to build a new bolt-on neck for my home-built five string bass, to replace the OLP MM5 neck which it has currently. I have decent AA plain maple blanks for the neck and fingerboard, a double action truss rod and two 6mm square carbon fibre rods to add some stiffness. While I have built a neck once before, I have never worked with CF rods, and would like to hear how other people do things. Which adhesives work with CF - does it have to be epoxy? And should I use the same adhesive to attach the fingerboard to the neck, given that some of the surface it needs to bond to is the face of the CF rods? I would usually use Titebond for this, but I have a feeling it may not bond well with the carbon fibre. Should I make my slots using a 1/4" (6.35mm) router cutter, allowing for a glue line? Or should I use a 6mm cutter for tight fitting slots which might suffer from glue squeeze-out when the rods are inserted?