Knawbone. I have only built fiberglass bows at this point in time. But, I have read in "The Traditional Bowyers Bible" (Volume Two) a chapter on all wood recurves written by Jim HAMM that explains the procedure of using boiling water, and an apparatus for recurving tips on a wooden bow. The device is home made. I would guess the same could be done to add deflex to all wood bows also. I have bought all 4 volumes of this excellent work written by many of the great Bowyers of our time. I would recommend highly, for anyone to buy these, for their collection of fine books on the art of bowyering. Also, you can go to any public library in the county of your state, and order these books for loan. Before the recession hit, you could order books from anywhere in the United States of America. Good luck on your bows. John