HEy Aries,
I've got some osage bows with longitudinal cracks down the limbs, but nothing like that!! Holy cow!! That osage is some amazing stuff. I don't know if you read my article last year called Pushing the Limits of Bowmaking, but it looks like you pushed it even further than it's ever been pushed before. I'm sure other woods would probably handle that crack with no problem as well, but I don't know for how long. That is really cool!! It's the original "split limb " design. AWESOME!!