Occasionally the neck needs to be replaced if the measurement are no longer accurate, or if the instrument suffers accidental damage. Like with all other restoration work, the choice of wood is incredibly important if the wood for the repair is to match the original wood as closely as possible and vibrate optimally for the best sound. Equally important is for the wood to have been stored for a enough time after the tree has been felled, in order to prevent the wood from changing after the repair and thus altering the neck projection. I have a large stock of neck wood, which allows me to find the perfect piece for each instrument.