Todd, I acquired an H&H hammer gun and a Parker VH, both in .410. I have hunted dove (walking them up) with the H&H with good results, and I'm saving the Parker for some Missouri woodcock when flights arrive this Fall.
After watching your video, maybe one needs to speak with an accent to shoot a .410 well. Our PGCA colleague Stan Hillis is obviously a seriously good wing shot with his .410s. I'll bet he has a Southern accent, so maybe either acquiring an English or Southern accent will help our shooting.
I'll try Southern, you can give the British version a try.
(Thanks for sharing the video!)