i have seen an ocean spray bow from two 2 inch dia billets which pulls about 50 pounds. It's an wesome wood- resembling oak in some ways (it has ray wood) . you probly want to seal the ends if you havent already. If it were me, I'd take one and bring it to floor tiller, then see if it tolerates drying without warp or check. if you can dry it this way, it may be ready in a few months, otherwise with bark and sealed ends it would take at least a year. If you got a bunch of staves, you may as well experiment. I would love to try this wood, but have never found it big enough in my area. it is excelent for darts. i'm guessing you're on the central oregon coast?
good luck!