Coppicing is a ancient practice of cutting certain young species of trees really close to the ground during the winter time. What this does is make the plant send up straight long shoots. It has been used for basket making, ship building and so on. the tree does not die and one can continually get shoots this way, the plant actually lives longer. Check out primitive ways coppicing.
What I am getting at is, I have seen this first hand. There is a patch of red osier by some buildings in my town. the county had mowed them down. Next thing you know it grows back with long straight shoots. Now my mind is working If I control thoes shoots so that they grow good and tall enough for arrow shoots I could have some knot free arrow and many good straight ones. A potential to have many arrows and not having to search the whole forest for some straight shoots. It works for oaks, beeches, hazel, osier, willows, and probably any plant you can think of. It could also work for bow staves.
My question is has any one tried this technique? If some one does try this technique let me know how well it works. It will probably take 2-4 years to have shafts but well worth the wait