I have made a lot of ironwood stave bows, some of it was very old and weathered and even dead standing (lots of drying checks) you dont have to worry about them. If you like I'll take some photos to show the point, and if you really are still woried, superglue them. If they dont run off the edge you are all set.
If you chase a ring (try to, that is) good luck bud.
rich