What's the best way to take sapwood off seasoned osage? I rediscovered a piece with bark still on in my attic and decided to try it. I ended up using a drawknife. I'm in reasonably good shape but it took wailing away at it for over an hour to get sapwood off one 3 ft. billet. Ended up sweating with no shirt at 40 degrees. I'm still learning on self bows. Read TBB1, etc. several times. If this is usual, fine. Maybe the drawknife is the wrong type. I have one on order, straight bladed. The one I have is curved like a smile when holding it. After all that I think the rings are too thin, about 1/8 in. What do you think is minimum ring width? TBB says about 3/16.