I like to rip the bark and sapwood off, seal them, and put them up to season. When I'm ready to make a bow, I'll even the back up with the drawknife and then rough out the bow on the bandsaw. Then I'll chase it to the final ring very carefully. I figure why chase a ring on the entire stave when I can do it on a bow sized piece of wood instead. After I get the back to a single ring then I'll cut it out to thickness. That's with osage. I haven't used BL yet.