If you're thinking of drilling a Lights Out for flying backends, try laying the core down. I am such a fan of putting 1 inch pin to pap drillings on weightblocks like this, it's not even funny. Cover should get you push, but the layout will help control the change of direction downlane.
Now, if they're dry up front, you need less cover. I wouldn't recommend adding surface to the Natural if the heads are gone, so I would use some kind of polish with a slip agent (3 coats of Control It used to work great for me) on the Shout.