Nice gun, Todd.
The beavertail forend guns came with a different forend iron that was a little longer and had a long screw from the tip of the forend wood to the front tip of the forend iron, which anchored the wood so the recoil forces trying to pull the wood off the iron were mitigated.
Still, I'm sure many BT forends have been put on splinter type iron. You might contact Brad Bachelder of Grand Rapids, Michigan.
www.bacheldermastergunmakers.com