I need advice from you wise folk. I have a hickory board, 2.25"x1.75" and about 7 feet long, and I'm trying to decide whether it's usable. The grain pattern looks friendly enough, but here's the problem: half the board is heartwood, and the other half is sapwood, but the transition runs at an angle that makes it impossible to get either an all-heartwood or all-sapwood bow out of it. The angle is also such that I don't really have a way to make a heartwood bow with a layer of sapwood on the back either. My question is, is it possible to build a functioning bow (i.e., one that won't break immediately) that basically ignores the transition from heartwood to sapwood, bearing in mind that this is hickory so both HW and SW are functionally usable on their own?
(At the moment, my inclination is to split the stave into two billets and rotate and shape them so that I make a bow with one sapwood limb and one heartwood limb, Frankenstein-style.)
Thanks for any advice you can offer.