If you are worried about the wood (and I would be on that gun), take the wood from the metal. and re-cock them. Put a soft piece of pine on a table, let the shoe end hand over the table, the ejector "kickers" are on the pine, push down hard until you hear them click into the notches,. Doing one at a time will be hard.
They can be cocked at the same time, just like if you had fired both barrels.
I don't know how strong your ejector springs are, but I imagine the ones on my Spanish gun are a copy of yours, throw an aluminim AZoom quite a distance, and now only use the plastic ones in it. Don't stand behind me when I open it. I'm used to catching my empties when I open my other guns, can't do it with this gun.