Jeff,I have a dozen wood shafts. Six are Birch ,spined 60 lbs. and 32 inches long, and six are Ash spined for around 55 lbs.and are 32 inches long., and five more that are not marked. I would take what ever sinew you think is a fair trade if you are interested. I won't use them as I shoot 35 to 45 lb bows.