The main fear about Scarf joins from a woodworking perspective is somewhat unfounded. IMO it's most likely stronger than just a one piece neck. From looking at a large number of broken off headstocks tends to beck me up in my opinion that the join is not the fault, but the lack of a strong volute to brace the tilted headstock design. A properly glued and set join should be stronger than the natural grain of the wood. Which explains that on a number of the Gibson necks that I've seen, the break is the wood directly at the nut, not a clean break at the join. Most of the snapped headstocks I've seen from Gibson/Epiphone and Jackson all had one feature missing ... a volute. :blackeye: