I’ve worked with Box a lot but not as bows. My gut would be that it will fail unexpectedly in tension. I’ve got a good stash of it but only use it for tool handles. Unless you want to try and use it if I were you I would sell it and use the proceeds to buy a stave or two of something else. In the U.K. I would guess if you chop those up into turning blanks/ handle blanks/knapping billets there’s at least £100, maybe £200 if your patient, in each stave
